552636561 has 16 divisors (see below), whose sum is σ = 782676864. Its totient is φ = 345648384.

The previous prime is 552636541. The next prime is 552636577. The reversal of 552636561 is 165636255.

It is not a de Polignac number, because 552636561 - 2⁵ = 552636529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (552636541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925 + ... + 33258.

It is an arithmetic number, because the mean of its divisors is an integer number (48917304).

Almost surely, 2^552636561 is an apocalyptic number.

552636561 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

552636561 is a deficient number, since it is larger than the sum of its proper divisors (230040303).

552636561 is a wasteful number, since it uses less digits than its factorization.

552636561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34520.

The product of its digits is 162000, while the sum is 39.

The square root of 552636561 is about 23508.2232633604. The cubic root of 552636561 is about 820.6283905216.

The spelling of 552636561 in words is "five hundred fifty-two million, six hundred thirty-six thousand, five hundred sixty-one".