51238204 has 36 divisors (see below), whose sum is σ = 99619632. Its totient is φ = 22936320.

The previous prime is 51238199. The next prime is 51238207. The reversal of 51238204 is 40283215.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51238207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282994 + ... + 283174.

It is an arithmetic number, because the mean of its divisors is an integer number (2767212).

Almost surely, 2^51238204 is an apocalyptic number.

It is an amenable number.

51238204 is a deficient number, since it is larger than the sum of its proper divisors (48381428).

51238204 is a wasteful number, since it uses less digits than its factorization.

51238204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 51238204 is about 7158.0866158492. The cubic root of 51238204 is about 371.4194416747.

The spelling of 51238204 in words is "fifty-one million, two hundred thirty-eight thousand, two hundred four".