55124472 has 128 divisors (see below), whose sum is σ = 165715200. Its totient is φ = 15095808.

The previous prime is 55124449. The next prime is 55124473. The reversal of 55124472 is 27442155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55124473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100503 + ... + 101049.

It is an arithmetic number, because the mean of its divisors is an integer number (1294650).

Almost surely, 2^55124472 is an apocalyptic number.

55124472 is a gapful number since it is divisible by the number (52) 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 55124472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82857600).

55124472 is an abundant number, since it is smaller than the sum of its proper divisors (110590728).

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

55124472 is a wasteful number, since it uses less digits than its factorization.

55124472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 601 counting only the distinct ones).

The product of its digits is 11200, while the sum is 30.

The square root of 55124472 is about 7424.5856450040. The cubic root of 55124472 is about 380.5819154427.

The spelling of 55124472 in words is "fifty-five million, one hundred twenty-four thousand, four hundred seventy-two".