55903072 has 24 divisors (see below), whose sum is σ = 116534376. Its totient is φ = 26307072.

The previous prime is 55903051. The next prime is 55903091. The reversal of 55903072 is 27030955.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50838 + ... + 51925.

It is an arithmetic number, because the mean of its divisors is an integer number (4855599).

Almost surely, 2^55903072 is an apocalyptic number.

It is an amenable number.

55903072 is an abundant number, since it is smaller than the sum of its proper divisors (60631304).

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

55903072 is a wasteful number, since it uses less digits than its factorization.

55903072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102790 (or 102782 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 55903072 is about 7476.8356943295. The cubic root of 55903072 is about 382.3653750387.

The spelling of 55903072 in words is "fifty-five million, nine hundred three thousand, seventy-two".