610925257 has 2 divisors, whose sum is σ = 610925258. Its totient is φ = 610925256.

The previous prime is 610925233. The next prime is 610925279. The reversal of 610925257 is 752529016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606341376 + 4583881 = 24624^2 + 2141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-610925257 is a prime.

It is not a weakly prime, because it can be changed into another prime (610925657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305462628 + 305462629.

It is an arithmetic number, because the mean of its divisors is an integer number (305462629).

Almost surely, 2^610925257 is an apocalyptic number.

It is an amenable number.

610925257 is a deficient number, since it is larger than the sum of its proper divisors (1).

610925257 is an equidigital number, since it uses as much as digits as its factorization.

610925257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 610925257 is about 24716.9022533165. The cubic root of 610925257 is about 848.5211920220.

The spelling of 610925257 in words is "six hundred ten million, nine hundred twenty-five thousand, two hundred fifty-seven".