5651505257 has 2 divisors, whose sum is σ = 5651505258. Its totient is φ = 5651505256.

The previous prime is 5651505241. The next prime is 5651505269. The reversal of 5651505257 is 7525051565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3413363776 + 2238141481 = 58424^2 + 47309^2 .

It is a cyclic number.

It is not a de Polignac number, because 5651505257 - 2⁴ = 5651505241 is a prime.

It is not a weakly prime, because it can be changed into another prime (5651505227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2825752628 + 2825752629.

It is an arithmetic number, because the mean of its divisors is an integer number (2825752629).

Almost surely, 2^5651505257 is an apocalyptic number.

It is an amenable number.

5651505257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5651505257 is an equidigital number, since it uses as much as digits as its factorization.

5651505257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262500, while the sum is 41.

The square root of 5651505257 is about 75176.4940456789. The cubic root of 5651505257 is about 1781.2356501530.

The spelling of 5651505257 in words is "five billion, six hundred fifty-one million, five hundred five thousand, two hundred fifty-seven".