425983957 has 4 divisors (see below), whose sum is σ = 486838816. Its totient is φ = 365129100.

The previous prime is 425983951. The next prime is 425983967. The reversal of 425983957 is 759389524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 425983957 - 2¹⁵ = 425951189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425983951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30427419 + ... + 30427432.

It is an arithmetic number, because the mean of its divisors is an integer number (121709704).

Almost surely, 2^425983957 is an apocalyptic number.

It is an amenable number.

425983957 is a deficient number, since it is larger than the sum of its proper divisors (60854859).

425983957 is an equidigital number, since it uses as much as digits as its factorization.

425983957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60854858.

The product of its digits is 2721600, while the sum is 52.

The square root of 425983957 is about 20639.3787939463. The cubic root of 425983957 is about 752.4270747533.

The spelling of 425983957 in words is "four hundred twenty-five million, nine hundred eighty-three thousand, nine hundred fifty-seven".