551896478 has 16 divisors (see below), whose sum is σ = 948365664. Its totient is φ = 235962720.

The previous prime is 551896459. The next prime is 551896481. The reversal of 551896478 is 874698155.

It is a Curzon number.

It is a congruent 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, 40925 + ... + 52712.

It is an arithmetic number, because the mean of its divisors is an integer number (59272854).

Almost surely, 2^551896478 is an apocalyptic number.

551896478 is a deficient number, since it is larger than the sum of its proper divisors (396469186).

551896478 is a wasteful number, since it uses less digits than its factorization.

551896478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94067.

The product of its digits is 2419200, while the sum is 53.

The square root of 551896478 is about 23492.4770511753. The cubic root of 551896478 is about 820.2619022624.

The spelling of 551896478 in words is "five hundred fifty-one million, eight hundred ninety-six thousand, four hundred seventy-eight".