425524522 has 4 divisors (see below), whose sum is σ = 638286786. Its totient is φ = 212762260.

The previous prime is 425524469. The next prime is 425524537. The reversal of 425524522 is 225425524.

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

It can be written as a sum of positive squares in only one way, i.e., 362940601 + 62583921 = 19051^2 + 7911^2 .

It is a super-2 number, since 2×425524522² = 362142237646656968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106381129 + ... + 106381132.

Almost surely, 2^425524522 is an apocalyptic number.

425524522 is a deficient number, since it is larger than the sum of its proper divisors (212762264).

425524522 is a wasteful number, since it uses less digits than its factorization.

425524522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212762263.

The product of its digits is 32000, while the sum is 31.

The square root of 425524522 is about 20628.2457324902. The cubic root of 425524522 is about 752.1564732584.

It can be divided in two parts, 42552 and 4522, that added together give a palindrome (47074).

The spelling of 425524522 in words is "four hundred twenty-five million, five hundred twenty-four thousand, five hundred twenty-two".