551936690 has 8 divisors (see below), whose sum is σ = 993486060. Its totient is φ = 220774672.

The previous prime is 551936689. The next prime is 551936713. The reversal of 551936690 is 96639155.

It can be written as a sum of positive squares in 2 ways, for example, as 539958169 + 11978521 = 23237^2 + 3461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×551936690² = 609268219536312200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27596825 + ... + 27596844.

Almost surely, 2^551936690 is an apocalyptic number.

551936690 is a deficient number, since it is larger than the sum of its proper divisors (441549370).

551936690 is a wasteful number, since it uses less digits than its factorization.

551936690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55193676.

The product of its (nonzero) digits is 218700, while the sum is 44.

The square root of 551936690 is about 23493.3328840333. The cubic root of 551936690 is about 820.2818236135.

The spelling of 551936690 in words is "five hundred fifty-one million, nine hundred thirty-six thousand, six hundred ninety".