55253408 has 96 divisors (see below), whose sum is σ = 131281920. Its totient is φ = 22394880.

The previous prime is 55253371. The next prime is 55253411. The reversal of 55253408 is 80435255.

It is a super-2 number, since 2×55253408² = 6105878191228928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506858 + ... + 506966.

It is an arithmetic number, because the mean of its divisors is an integer number (1367520).

Almost surely, 2^55253408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55253408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65640960).

55253408 is an abundant number, since it is smaller than the sum of its proper divisors (76028512).

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

55253408 is a wasteful number, since it uses less digits than its factorization.

55253408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 55253408 is about 7433.2636170124. The cubic root of 55253408 is about 380.8784111064.

The spelling of 55253408 in words is "fifty-five million, two hundred fifty-three thousand, four hundred eight".