51208475 has 6 divisors (see below), whose sum is σ = 63498540. Its totient is φ = 40966760.

The previous prime is 51208459. The next prime is 51208483. The reversal of 51208475 is 57480215.

It is not a de Polignac number, because 51208475 - 2⁴ = 51208459 is a prime.

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, 1024145 + ... + 1024194.

It is an arithmetic number, because the mean of its divisors is an integer number (10583090).

Almost surely, 2^51208475 is an apocalyptic number.

51208475 is a deficient number, since it is larger than the sum of its proper divisors (12290065).

51208475 is a wasteful number, since it uses less digits than its factorization.

51208475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048349 (or 2048344 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 51208475 is about 7156.0097121231. The cubic root of 51208475 is about 371.3475938219.

The spelling of 51208475 in words is "fifty-one million, two hundred eight thousand, four hundred seventy-five".