616732425 has 18 divisors (see below), whose sum is σ = 1104636702. Its totient is φ = 328923840.

The previous prime is 616732423. The next prime is 616732451. The reversal of 616732425 is 524237616.

616732425 is a `hidden beast` number, since 616 + 7 + 32 + 4 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 18636489 + 598095936 = 4317^2 + 24456^2 .

It is not a de Polignac number, because 616732425 - 2¹ = 616732423 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 616732425.

It is not an unprimeable number, because it can be changed into a prime (616732423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1370292 + ... + 1370741.

Almost surely, 2^616732425 is an apocalyptic number.

It is an amenable number.

616732425 is a deficient number, since it is larger than the sum of its proper divisors (487904277).

616732425 is a wasteful number, since it uses less digits than its factorization.

616732425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741049 (or 2741041 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 616732425 is about 24834.0980307319. The cubic root of 616732425 is about 851.2012657513.

The spelling of 616732425 in words is "six hundred sixteen million, seven hundred thirty-two thousand, four hundred twenty-five".