51753897 has 56 divisors (see below), whose sum is σ = 86180864. Its totient is φ = 30862944.

The previous prime is 51753859. The next prime is 51753901. The reversal of 51753897 is 79835715.

51753897 is a `hidden beast` number, since 517 + 53 + 89 + 7 = 666.

It is not a de Polignac number, because 51753897 - 2⁶ = 51753833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51753847) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 407448 + ... + 407574.

It is an arithmetic number, because the mean of its divisors is an integer number (1538944).

Almost surely, 2^51753897 is an apocalyptic number.

It is an amenable number.

51753897 is a deficient number, since it is larger than the sum of its proper divisors (34426967).

51753897 is a wasteful number, since it uses less digits than its factorization.

51753897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 186 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 51753897 is about 7194.0181400939. The cubic root of 51753897 is about 372.6613495564.

It can be divided in two parts, 51753 and 897, that added together give a triangular number (52650 = T₃₂₄).

The spelling of 51753897 in words is "fifty-one million, seven hundred fifty-three thousand, eight hundred ninety-seven".