51600465 has 24 divisors (see below), whose sum is σ = 102218688. Its totient is φ = 23588640.

The previous prime is 51600401. The next prime is 51600467. The reversal of 51600465 is 56400615.

It is a happy number.

51600465 is a `hidden beast` number, since 51 + 600 + 4 + 6 + 5 = 666.

It is not a de Polignac number, because 51600465 - 2⁶ = 51600401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51600467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81591 + ... + 82220.

It is an arithmetic number, because the mean of its divisors is an integer number (4259112).

Almost surely, 2^51600465 is an apocalyptic number.

It is an amenable number.

51600465 is a deficient number, since it is larger than the sum of its proper divisors (50618223).

51600465 is a wasteful number, since it uses less digits than its factorization.

51600465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163829 (or 163826 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 51600465 is about 7183.3463650307. The cubic root of 51600465 is about 372.2927153272.

The spelling of 51600465 in words is "fifty-one million, six hundred thousand, four hundred sixty-five".