51406675 has 12 divisors (see below), whose sum is σ = 64070800. Its totient is φ = 40914720.

The previous prime is 51406669. The next prime is 51406681. The reversal of 51406675 is 57660415.

51406675 = 406² + 407² + ... + 604².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51406669) and next prime (51406681).

It is not a de Polignac number, because 51406675 - 2⁷ = 51406547 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51406675.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192 + ... + 10141.

Almost surely, 2^51406675 is an apocalyptic number.

51406675 is a deficient number, since it is larger than the sum of its proper divisors (12664125).

51406675 is a wasteful number, since it uses less digits than its factorization.

51406675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10542 (or 10537 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 51406675 is about 7169.8448379306. The cubic root of 51406675 is about 371.8260715232.

The spelling of 51406675 in words is "fifty-one million, four hundred six thousand, six hundred seventy-five".