551940479 has 8 divisors (see below), whose sum is σ = 586634400. Its totient is φ = 517494016.

The previous prime is 551940449. The next prime is 551940503. The reversal of 551940479 is 974049155.

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

It is a cyclic number.

It is not a de Polignac number, because 551940479 - 2²⁰ = 550891903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551940449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57254 + ... + 66195.

It is an arithmetic number, because the mean of its divisors is an integer number (73329300).

Almost surely, 2^551940479 is an apocalyptic number.

551940479 is a deficient number, since it is larger than the sum of its proper divisors (34693921).

551940479 is a wasteful number, since it uses less digits than its factorization.

551940479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123729.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 551940479 is about 23493.4135237943. The cubic root of 551940479 is about 820.2837006650.

The spelling of 551940479 in words is "five hundred fifty-one million, nine hundred forty thousand, four hundred seventy-nine".