425222531 has 4 divisors (see below), whose sum is σ = 425398752. Its totient is φ = 425046312.

The previous prime is 425222519. The next prime is 425222549. The reversal of 425222531 is 135222524.

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 425222531 - 2⁶ = 425222467 is a prime.

It is a super-2 number, since 2×425222531² = 361628401740091922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425222531.

It is not an unprimeable number, because it can be changed into a prime (425225531) 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, 84440 + ... + 89333.

It is an arithmetic number, because the mean of its divisors is an integer number (106349688).

Almost surely, 2^425222531 is an apocalyptic number.

425222531 is a deficient number, since it is larger than the sum of its proper divisors (176221).

425222531 is a wasteful number, since it uses less digits than its factorization.

425222531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176220.

The product of its digits is 4800, while the sum is 26.

The square root of 425222531 is about 20620.9245912980. The cubic root of 425222531 is about 751.9784982110.

The spelling of 425222531 in words is "four hundred twenty-five million, two hundred twenty-two thousand, five hundred thirty-one".