6552621631 has 2 divisors, whose sum is σ = 6552621632. Its totient is φ = 6552621630.

The previous prime is 6552621613. The next prime is 6552621749. The reversal of 6552621631 is 1361262556.

Together with previous prime (6552621613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6552621631 - 2¹⁵ = 6552588863 is a prime.

It is a super-2 number, since 2×6552621631² = 85873700478098200322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6552621611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276310815 + 3276310816.

It is an arithmetic number, because the mean of its divisors is an integer number (3276310816).

Almost surely, 2^6552621631 is an apocalyptic number.

6552621631 is a deficient number, since it is larger than the sum of its proper divisors (1).

6552621631 is an equidigital number, since it uses as much as digits as its factorization.

6552621631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 6552621631 is about 80948.2651512681. The cubic root of 6552621631 is about 1871.2782238533.

The spelling of 6552621631 in words is "six billion, five hundred fifty-two million, six hundred twenty-one thousand, six hundred thirty-one".