551046256015 has 24 divisors (see below), whose sum is σ = 686877637680. Its totient is φ = 424371623424.

The previous prime is 551046256001. The next prime is 551046256027. The reversal of 551046256015 is 510652640155.

It is a de Polignac number, because none of the positive numbers 2^k-551046256015 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1222656 + ... + 1611514.

It is an arithmetic number, because the mean of its divisors is an integer number (28619901570).

Almost surely, 2^551046256015 is an apocalyptic number.

551046256015 is a deficient number, since it is larger than the sum of its proper divisors (135831381665).

551046256015 is a wasteful number, since it uses less digits than its factorization.

551046256015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389259 (or 389230 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 551046256015 in words is "five hundred fifty-one billion, forty-six million, two hundred fifty-six thousand, fifteen".