2507655257 has 2 divisors, whose sum is σ = 2507655258. Its totient is φ = 2507655256.

The previous prime is 2507655253. The next prime is 2507655299. The reversal of 2507655257 is 7525567052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1457636041 + 1050019216 = 38179^2 + 32404^2 .

It is a cyclic number.

It is not a de Polignac number, because 2507655257 - 2² = 2507655253 is a prime.

It is not a weakly prime, because it can be changed into another prime (2507655251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253827628 + 1253827629.

It is an arithmetic number, because the mean of its divisors is an integer number (1253827629).

Almost surely, 2^2507655257 is an apocalyptic number.

It is an amenable number.

2507655257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2507655257 is an equidigital number, since it uses as much as digits as its factorization.

2507655257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 735000, while the sum is 44.

The square root of 2507655257 is about 50076.4940565931. The cubic root of 2507655257 is about 1358.5927010139.

The spelling of 2507655257 in words is "two billion, five hundred seven million, six hundred fifty-five thousand, two hundred fifty-seven".