55630038 has 32 divisors (see below), whose sum is σ = 113944320. Its totient is φ = 18100640.

The previous prime is 55630021. The next prime is 55630063. The reversal of 55630038 is 83003655.

55630038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55630038² = 6189402255762888, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55629987 and 55630014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58648 + ... + 59588.

It is an arithmetic number, because the mean of its divisors is an integer number (3560760).

Almost surely, 2^55630038 is an apocalyptic number.

55630038 is an abundant number, since it is smaller than the sum of its proper divisors (58314282).

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

55630038 is a wasteful number, since it uses less digits than its factorization.

55630038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 55630038 is about 7458.5546857283. The cubic root of 55630038 is about 381.7418602656.

The spelling of 55630038 in words is "fifty-five million, six hundred thirty thousand, thirty-eight".