51255475 has 6 divisors (see below), whose sum is σ = 63556820. Its totient is φ = 41004360.

The previous prime is 51255439. The next prime is 51255517. The reversal of 51255475 is 57455215.

It is not a de Polignac number, because 51255475 - 2¹¹ = 51253427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51255475.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1025085 + ... + 1025134.

Almost surely, 2^51255475 is an apocalyptic number.

51255475 is a deficient number, since it is larger than the sum of its proper divisors (12301345).

51255475 is a wasteful number, since it uses less digits than its factorization.

51255475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050229 (or 2050224 counting only the distinct ones).

The product of its digits is 35000, while the sum is 34.

The square root of 51255475 is about 7159.2929120130. The cubic root of 51255475 is about 371.4611687720.

The spelling of 51255475 in words is "fifty-one million, two hundred fifty-five thousand, four hundred seventy-five".