51375506 has 64 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 18916416.

The previous prime is 51375469. The next prime is 51375521. The reversal of 51375506 is 60557315.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286925 + ... + 287103.

It is an arithmetic number, because the mean of its divisors is an integer number (1587600).

Almost surely, 2^51375506 is an apocalyptic number.

51375506 is a deficient number, since it is larger than the sum of its proper divisors (50230894).

51375506 is a wasteful number, since it uses less digits than its factorization.

51375506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 51375506 is about 7167.6708908822. The cubic root of 51375506 is about 371.7509075494.

The spelling of 51375506 in words is "fifty-one million, three hundred seventy-five thousand, five hundred six".