5627653621 has 2 divisors, whose sum is σ = 5627653622. Its totient is φ = 5627653620.

The previous prime is 5627653573. The next prime is 5627653627. The reversal of 5627653621 is 1263567265.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2891212900 + 2736440721 = 53770^2 + 52311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5627653621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5627653627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2813826810 + 2813826811.

It is an arithmetic number, because the mean of its divisors is an integer number (2813826811).

Almost surely, 2^5627653621 is an apocalyptic number.

It is an amenable number.

5627653621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5627653621 is an equidigital number, since it uses as much as digits as its factorization.

5627653621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 43.

The square root of 5627653621 is about 75017.6887207277. The cubic root of 5627653621 is about 1778.7262718869.

The spelling of 5627653621 in words is "five billion, six hundred twenty-seven million, six hundred fifty-three thousand, six hundred twenty-one".