425724401 has 4 divisors (see below), whose sum is σ = 425949552. Its totient is φ = 425499252.

The previous prime is 425724391. The next prime is 425724407. The reversal of 425724401 is 104427524.

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 a cyclic number.

It is not a de Polignac number, because 425724401 - 2⁶ = 425724337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425724407) 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, 109715 + ... + 113528.

It is an arithmetic number, because the mean of its divisors is an integer number (106487388).

Almost surely, 2^425724401 is an apocalyptic number.

It is an amenable number.

425724401 is a deficient number, since it is larger than the sum of its proper divisors (225151).

425724401 is a wasteful number, since it uses less digits than its factorization.

425724401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225150.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 425724401 is about 20633.0899527919. The cubic root of 425724401 is about 752.2742234252.

The spelling of 425724401 in words is "four hundred twenty-five million, seven hundred twenty-four thousand, four hundred one".