51258568 has 16 divisors (see below), whose sum is σ = 97044480. Its totient is φ = 25380048.

The previous prime is 51258563. The next prime is 51258607. The reversal of 51258568 is 86585215.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 51258568.

It is not an unprimeable number, because it can be changed into a prime (51258563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30280 + ... + 31927.

It is an arithmetic number, because the mean of its divisors is an integer number (6065280).

Almost surely, 2^51258568 is an apocalyptic number.

It is an amenable number.

51258568 is a deficient number, since it is larger than the sum of its proper divisors (45785912).

51258568 is a wasteful number, since it uses less digits than its factorization.

51258568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62316 (or 62312 counting only the distinct ones).

The product of its digits is 96000, while the sum is 40.

The square root of 51258568 is about 7159.5089217069. The cubic root of 51258568 is about 371.4686405350.

The spelling of 51258568 in words is "fifty-one million, two hundred fifty-eight thousand, five hundred sixty-eight".