635426425 has 24 divisors (see below), whose sum is σ = 835660800. Its totient is φ = 477646080.

The previous prime is 635426423. The next prime is 635426431. The reversal of 635426425 is 524624536.

It is not a de Polignac number, because 635426425 - 2¹ = 635426423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (635426423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440856 + ... + 442294.

It is an arithmetic number, because the mean of its divisors is an integer number (34819200).

Almost surely, 2^635426425 is an apocalyptic number.

It is an amenable number.

635426425 is a deficient number, since it is larger than the sum of its proper divisors (200234375).

635426425 is a wasteful number, since it uses less digits than its factorization.

635426425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505 (or 2500 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

The square root of 635426425 is about 25207.6659966765. The cubic root of 635426425 is about 859.7161606119.

The spelling of 635426425 in words is "six hundred thirty-five million, four hundred twenty-six thousand, four hundred twenty-five".