2425531 has 4 divisors (see below), whose sum is σ = 2509200. Its totient is φ = 2341864.

The previous prime is 2425523. The next prime is 2425541. The reversal of 2425531 is 1355242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2425531 - 2³ = 2425523 is a prime.

It is a super-2 number, since 2×2425531² = 11766401263922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

2425531 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2425541) 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, 41791 + ... + 41848.

It is an arithmetic number, because the mean of its divisors is an integer number (627300).

2^2425531 is an apocalyptic number.

2425531 is a deficient number, since it is larger than the sum of its proper divisors (83669).

2425531 is an equidigital number, since it uses as much as digits as its factorization.

2425531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83668.

The product of its digits is 1200, while the sum is 22.

The square root of 2425531 is about 1557.4116347324. The cubic root of 2425531 is about 134.3596745457.

The spelling of 2425531 in words is "two million, four hundred twenty-five thousand, five hundred thirty-one".