551516495 has 16 divisors (see below), whose sum is σ = 678260352. Its totient is φ = 430284960.

The previous prime is 551516479. The next prime is 551516509. The reversal of 551516495 is 594615155.

It is not a de Polignac number, because 551516495 - 2⁴ = 551516479 is a prime.

It is a Duffinian 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, 172784 + ... + 175946.

It is an arithmetic number, because the mean of its divisors is an integer number (42391272).

Almost surely, 2^551516495 is an apocalyptic number.

551516495 is a deficient number, since it is larger than the sum of its proper divisors (126743857).

551516495 is a wasteful number, since it uses less digits than its factorization.

551516495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022.

The product of its digits is 135000, while the sum is 41.

The square root of 551516495 is about 23484.3883250129. The cubic root of 551516495 is about 820.0736078084.

The spelling of 551516495 in words is "five hundred fifty-one million, five hundred sixteen thousand, four hundred ninety-five".