425899657 has 8 divisors (see below), whose sum is σ = 451858176. Its totient is φ = 400041792.

The previous prime is 425899651. The next prime is 425899681. The reversal of 425899657 is 756998524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425899657 - 2²³ = 417511049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425899598 and 425899607.

It is not an unprimeable number, because it can be changed into a prime (425899651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16353 + ... + 33454.

It is an arithmetic number, because the mean of its divisors is an integer number (56482272).

Almost surely, 2^425899657 is an apocalyptic number.

It is an amenable number.

425899657 is a deficient number, since it is larger than the sum of its proper divisors (25958519).

425899657 is a wasteful number, since it uses less digits than its factorization.

425899657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50327.

The product of its digits is 5443200, while the sum is 55.

The square root of 425899657 is about 20637.3364802728. The cubic root of 425899657 is about 752.3774376829.

The spelling of 425899657 in words is "four hundred twenty-five million, eight hundred ninety-nine thousand, six hundred fifty-seven".