55424376 has 96 divisors (see below), whose sum is σ = 172604640. Its totient is φ = 15738624.

The previous prime is 55424371. The next prime is 55424381. The reversal of 55424376 is 67342455.

55424376 is a `hidden beast` number, since 5 + 542 + 43 + 76 = 666.

It is an interprime number because it is at equal distance from previous prime (55424371) and next prime (55424381).

It is a super-2 number, since 2×55424376² = 6143722909978752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55424376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55424371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139410 + ... + 139806.

It is an arithmetic number, because the mean of its divisors is an integer number (1797965).

Almost surely, 2^55424376 is an apocalyptic number.

55424376 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55424376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86302320).

55424376 is an abundant number, since it is smaller than the sum of its proper divisors (117180264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55424376 is a wasteful number, since it uses less digits than its factorization.

55424376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 686 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 55424376 is about 7444.7549321653. The cubic root of 55424376 is about 381.2708512828.

The spelling of 55424376 in words is "fifty-five million, four hundred twenty-four thousand, three hundred seventy-six".