616875257 has 2 divisors, whose sum is σ = 616875258. Its totient is φ = 616875256.

The previous prime is 616875199. The next prime is 616875271. The reversal of 616875257 is 752578616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 613998841 + 2876416 = 24779^2 + 1696^2 .

It is a cyclic number.

It is not a de Polignac number, because 616875257 - 2²² = 612680953 is a prime.

It is not a weakly prime, because it can be changed into another prime (616875557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308437628 + 308437629.

It is an arithmetic number, because the mean of its divisors is an integer number (308437629).

Almost surely, 2^616875257 is an apocalyptic number.

It is an amenable number.

616875257 is a deficient number, since it is larger than the sum of its proper divisors (1).

616875257 is an equidigital number, since it uses as much as digits as its factorization.

616875257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705600, while the sum is 47.

The square root of 616875257 is about 24836.9735877784. The cubic root of 616875257 is about 851.2669719311.

The spelling of 616875257 in words is "six hundred sixteen million, eight hundred seventy-five thousand, two hundred fifty-seven".