51242204 has 24 divisors (see below), whose sum is σ = 97902000. Its totient is φ = 23324544.

The previous prime is 51242201. The next prime is 51242227. The reversal of 51242204 is 40224215.

It is a happy number.

51242204 is nontrivially palindromic in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51242201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2954 + ... + 10545.

It is an arithmetic number, because the mean of its divisors is an integer number (4079250).

Almost surely, 2^51242204 is an apocalyptic number.

It is an amenable number.

51242204 is a deficient number, since it is larger than the sum of its proper divisors (46659796).

51242204 is a wasteful number, since it uses less digits than its factorization.

51242204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13589 (or 13587 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 51242204 is about 7158.3660146712. The cubic root of 51242204 is about 371.4291065926.

Adding to 51242204 its reverse (40224215), we get a palindrome (91466419).

The spelling of 51242204 in words is "fifty-one million, two hundred forty-two thousand, two hundred four".