551056531 has 8 divisors (see below), whose sum is σ = 555645728. Its totient is φ = 546480000.

The previous prime is 551056511. The next prime is 551056537. The reversal of 551056531 is 135650155.

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 551056531 - 2⁹ = 551056019 is a prime.

It is a super-2 number, since 2×551056531² = 607326600715507922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551056493 and 551056502.

It is not an unprimeable number, because it can be changed into a prime (551056537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97051 + ... + 102571.

It is an arithmetic number, because the mean of its divisors is an integer number (69455716).

Almost surely, 2^551056531 is an apocalyptic number.

551056531 is a deficient number, since it is larger than the sum of its proper divisors (4589197).

551056531 is a wasteful number, since it uses less digits than its factorization.

551056531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333.

The product of its (nonzero) digits is 11250, while the sum is 31.

The square root of 551056531 is about 23474.5933085112. The cubic root of 551056531 is about 819.8455643128.

The spelling of 551056531 in words is "five hundred fifty-one million, fifty-six thousand, five hundred thirty-one".