51204052 has 6 divisors (see below), whose sum is σ = 89607098. Its totient is φ = 25602024.

The previous prime is 51204011. The next prime is 51204061. The reversal of 51204052 is 25040215.

It can be written as a sum of positive squares in only one way, i.e., 51179716 + 24336 = 7154^2 + 156^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6400503 + ... + 6400510.

Almost surely, 2^51204052 is an apocalyptic number.

It is an amenable number.

51204052 is a deficient number, since it is larger than the sum of its proper divisors (38403046).

51204052 is a wasteful number, since it uses less digits than its factorization.

51204052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12801017 (or 12801015 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 51204052 is about 7155.7006645052. The cubic root of 51204052 is about 371.3369021171.

Adding to 51204052 its reverse (25040215), we get a palindrome (76244267).

The spelling of 51204052 in words is "fifty-one million, two hundred four thousand, fifty-two".