425231057 has 2 divisors, whose sum is σ = 425231058. Its totient is φ = 425231056.

The previous prime is 425231011. The next prime is 425231063. The reversal of 425231057 is 750132524.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236882881 + 188348176 = 15391^2 + 13724^2 .

It is a cyclic number.

It is not a de Polignac number, because 425231057 - 2⁸ = 425230801 is a prime.

It is not a weakly prime, because it can be changed into another prime (425231857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212615528 + 212615529.

It is an arithmetic number, because the mean of its divisors is an integer number (212615529).

Almost surely, 2^425231057 is an apocalyptic number.

It is an amenable number.

425231057 is a deficient number, since it is larger than the sum of its proper divisors (1).

425231057 is an equidigital number, since it uses as much as digits as its factorization.

425231057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 425231057 is about 20621.1313220201. The cubic root of 425231057 is about 751.9835240703.

The spelling of 425231057 in words is "four hundred twenty-five million, two hundred thirty-one thousand, fifty-seven".