51252772 has 12 divisors (see below), whose sum is σ = 89753356. Its totient is φ = 25608960.

The previous prime is 51252727. The next prime is 51252787. The reversal of 51252772 is 27725215.

It can be written as a sum of positive squares in 2 ways, for example, as 16842816 + 34409956 = 4104^2 + 5866^2 .

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, 4072 + ... + 10912.

Almost surely, 2^51252772 is an apocalyptic number.

It is an amenable number.

51252772 is a deficient number, since it is larger than the sum of its proper divisors (38500584).

51252772 is a wasteful number, since it uses less digits than its factorization.

51252772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8718 (or 8716 counting only the distinct ones).

The product of its digits is 9800, while the sum is 31.

The square root of 51252772 is about 7159.1041338983. The cubic root of 51252772 is about 371.4546388862.

Adding to 51252772 its reverse (27725215), we get a palindrome (78977987).

The spelling of 51252772 in words is "fifty-one million, two hundred fifty-two thousand, seven hundred seventy-two".