425957 has 6 divisors (see below), whose sum is σ = 495558. Its totient is φ = 365064.

The previous prime is 425939. The next prime is 425959. The reversal of 425957 is 759524.

It can be written as a sum of positive squares in only one way, i.e., 261121 + 164836 = 511^2 + 406^2 .

It is not a de Polignac number, because 425957 - 2⁸ = 425701 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4298 + ... + 4395.

It is an arithmetic number, because the mean of its divisors is an integer number (82593).

2⁴²⁵⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

425957 is a deficient number, since it is larger than the sum of its proper divisors (69601).

425957 is an equidigital number, since it uses as much as digits as its factorization.

425957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8707 (or 8700 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 425957 is about 652.6538132885. The cubic root of 425957 is about 75.2411202791.

The spelling of 425957 in words is "four hundred twenty-five thousand, nine hundred fifty-seven".