51150520 has 32 divisors (see below), whose sum is σ = 116006400. Its totient is φ = 20297088.

The previous prime is 51150511. The next prime is 51150557. The reversal of 51150520 is 2505115.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46 + ... + 10114.

It is an arithmetic number, because the mean of its divisors is an integer number (3625200).

Almost surely, 2^51150520 is an apocalyptic number.

It is an amenable number.

51150520 is an abundant number, since it is smaller than the sum of its proper divisors (64855880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51150520 is a wasteful number, since it uses less digits than its factorization.

51150520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10207 (or 10203 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 51150520 is about 7151.9591721430. The cubic root of 51150520 is about 371.2074505230.

Adding to 51150520 its reverse (2505115), we get a palindrome (53655635).

The spelling of 51150520 in words is "fifty-one million, one hundred fifty thousand, five hundred twenty".