55238012 has 12 divisors (see below), whose sum is σ = 97158600. Its totient is φ = 27478416.

The previous prime is 55237999. The next prime is 55238023. The reversal of 55238012 is 21083255.

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, 34262 + ... + 35837.

It is an arithmetic number, because the mean of its divisors is an integer number (8096550).

Almost surely, 2^55238012 is an apocalyptic number.

It is an amenable number.

55238012 is a deficient number, since it is larger than the sum of its proper divisors (41920588).

55238012 is a wasteful number, since it uses less digits than its factorization.

55238012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70300 (or 70298 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 55238012 is about 7432.2279297664. The cubic root of 55238012 is about 380.8430313958.

The spelling of 55238012 in words is "fifty-five million, two hundred thirty-eight thousand, twelve".