51290275 has 36 divisors (see below), whose sum is σ = 70045120. Its totient is φ = 37209600.

The previous prime is 51290269. The next prime is 51290287. The reversal of 51290275 is 57209215.

It is not a de Polignac number, because 51290275 - 2⁵ = 51290243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 223861 + ... + 224089.

Almost surely, 2^51290275 is an apocalyptic number.

51290275 is a deficient number, since it is larger than the sum of its proper divisors (18754845).

51290275 is a wasteful number, since it uses less digits than its factorization.

51290275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 51290275 is about 7161.7229072340. The cubic root of 51290275 is about 371.5452178367.

The spelling of 51290275 in words is "fifty-one million, two hundred ninety thousand, two hundred seventy-five".