551000495078 has 32 divisors (see below), whose sum is σ = 920756160000. Its totient is φ = 245179469920.

The previous prime is 551000495053. The next prime is 551000495081. The reversal of 551000495078 is 870594000155.

It is a super-2 number, since 2×551000495078² (a number of 24 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 577853 + ... + 1198296.

It is an arithmetic number, because the mean of its divisors is an integer number (28773630000).

Almost surely, 2^551000495078 is an apocalyptic number.

551000495078 is a deficient number, since it is larger than the sum of its proper divisors (369755664922).

551000495078 is a wasteful number, since it uses less digits than its factorization.

551000495078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776460.

The product of its (nonzero) digits is 252000, while the sum is 44.

The spelling of 551000495078 in words is "five hundred fifty-one billion, four hundred ninety-five thousand, seventy-eight".