626626541 has 2 divisors, whose sum is σ = 626626542. Its totient is φ = 626626540.

The previous prime is 626626537. The next prime is 626626547. The reversal of 626626541 is 145626626.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408444100 + 218182441 = 20210^2 + 14771^2 .

It is a cyclic number.

It is not a de Polignac number, because 626626541 - 2² = 626626537 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 626626495 and 626626504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (626626547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313313270 + 313313271.

It is an arithmetic number, because the mean of its divisors is an integer number (313313271).

Almost surely, 2^626626541 is an apocalyptic number.

It is an amenable number.

626626541 is a deficient number, since it is larger than the sum of its proper divisors (1).

626626541 is an equidigital number, since it uses as much as digits as its factorization.

626626541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 38.

The square root of 626626541 is about 25032.5096824110. The cubic root of 626626541 is about 855.7290231205.

The spelling of 626626541 in words is "six hundred twenty-six million, six hundred twenty-six thousand, five hundred forty-one".