5625952721 has 2 divisors, whose sum is σ = 5625952722. Its totient is φ = 5625952720.

The previous prime is 5625952693. The next prime is 5625952723. The reversal of 5625952721 is 1272595265.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3873693121 + 1752259600 = 62239^2 + 41860^2 .

It is a cyclic number.

It is not a de Polignac number, because 5625952721 - 2¹⁰ = 5625951697 is a prime.

Together with 5625952723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5625952723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2812976360 + 2812976361.

It is an arithmetic number, because the mean of its divisors is an integer number (2812976361).

Almost surely, 2^5625952721 is an apocalyptic number.

It is an amenable number.

5625952721 is a deficient number, since it is larger than the sum of its proper divisors (1).

5625952721 is an equidigital number, since it uses as much as digits as its factorization.

5625952721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 44.

The square root of 5625952721 is about 75006.3512044147. The cubic root of 5625952721 is about 1778.5470533012.

The spelling of 5625952721 in words is "five billion, six hundred twenty-five million, nine hundred fifty-two thousand, seven hundred twenty-one".