551625242 has 48 divisors (see below), whose sum is σ = 997983360. Its totient is φ = 227852352.

The previous prime is 551625241. The next prime is 551625247. The reversal of 551625242 is 242526155.

It is a super-2 number, since 2×551625242² = 608580815223117128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 551625199 and 551625208.

It is not an unprimeable number, because it can be changed into a prime (551625241) 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, 332078 + ... + 333734.

It is an arithmetic number, because the mean of its divisors is an integer number (20791320).

Almost surely, 2^551625242 is an apocalyptic number.

551625242 is a deficient number, since it is larger than the sum of its proper divisors (446358118).

551625242 is a wasteful number, since it uses less digits than its factorization.

551625242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1788 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 551625242 is about 23486.7035149678. The cubic root of 551625242 is about 820.1275044640.

The spelling of 551625242 in words is "five hundred fifty-one million, six hundred twenty-five thousand, two hundred forty-two".