551115056 has 40 divisors (see below), whose sum is σ = 1090175760. Its totient is φ = 269840384.

The previous prime is 551115031. The next prime is 551115067. The reversal of 551115056 is 650511155.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150560 + ... + 154176.

It is an arithmetic number, because the mean of its divisors is an integer number (27254394).

Almost surely, 2^551115056 is an apocalyptic number.

It is an amenable number.

551115056 is a deficient number, since it is larger than the sum of its proper divisors (539060704).

551115056 is a wasteful number, since it uses less digits than its factorization.

551115056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821 (or 3815 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 29.

The square root of 551115056 is about 23475.8398358823. The cubic root of 551115056 is about 819.8745872051.

It can be divided in two parts, 55 and 1115056, that added together give a palindrome (1115111).

The spelling of 551115056 in words is "five hundred fifty-one million, one hundred fifteen thousand, fifty-six".