55037620 has 96 divisors (see below), whose sum is σ = 134265600. Its totient is φ = 18754560.

The previous prime is 55037603. The next prime is 55037639. The reversal of 55037620 is 2673055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369306 + ... + 369454.

It is an arithmetic number, because the mean of its divisors is an integer number (1398600).

Almost surely, 2^55037620 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 55037620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67132800).

55037620 is an abundant number, since it is smaller than the sum of its proper divisors (79227980).

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

55037620 is a wasteful number, since it uses less digits than its factorization.

55037620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 55037620 is about 7418.7343934124. The cubic root of 55037620 is about 380.3819336305.

The spelling of 55037620 in words is "fifty-five million, thirty-seven thousand, six hundred twenty".