626056631 has 4 divisors (see below), whose sum is σ = 659007000. Its totient is φ = 593106264.

The previous prime is 626056621. The next prime is 626056657. The reversal of 626056631 is 136650626.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-626056631 is a prime.

It is a super-2 number, since 2×626056631² = 783893810438140322, 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 = 626056591 and 626056600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626056621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16475156 + ... + 16475193.

It is an arithmetic number, because the mean of its divisors is an integer number (164751750).

Almost surely, 2^626056631 is an apocalyptic number.

626056631 is a deficient number, since it is larger than the sum of its proper divisors (32950369).

626056631 is a wasteful number, since it uses less digits than its factorization.

626056631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32950368.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 626056631 is about 25021.1236957895. The cubic root of 626056631 is about 855.4695190302.

The spelling of 626056631 in words is "six hundred twenty-six million, fifty-six thousand, six hundred thirty-one".