51723475 has 6 divisors (see below), whose sum is σ = 64137140. Its totient is φ = 41378760.

The previous prime is 51723457. The next prime is 51723487. The reversal of 51723475 is 57432715.

It is not a de Polignac number, because 51723475 - 2⁹ = 51722963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51723475.

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, 1034445 + ... + 1034494.

Almost surely, 2^51723475 is an apocalyptic number.

51723475 is a deficient number, since it is larger than the sum of its proper divisors (12413665).

51723475 is a wasteful number, since it uses less digits than its factorization.

51723475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068949 (or 2068944 counting only the distinct ones).

The product of its digits is 29400, while the sum is 34.

The square root of 51723475 is about 7191.9034337232. The cubic root of 51723475 is about 372.5883159213.

The spelling of 51723475 in words is "fifty-one million, seven hundred twenty-three thousand, four hundred seventy-five".