5057145721 has 2 divisors, whose sum is σ = 5057145722. Its totient is φ = 5057145720.

The previous prime is 5057145701. The next prime is 5057145739. The reversal of 5057145721 is 1275417505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3239317225 + 1817828496 = 56915^2 + 42636^2 .

It is a cyclic number.

It is not a de Polignac number, because 5057145721 - 2⁵ = 5057145689 is a prime.

It is not a weakly prime, because it can be changed into another prime (5057145701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2528572860 + 2528572861.

It is an arithmetic number, because the mean of its divisors is an integer number (2528572861).

Almost surely, 2^5057145721 is an apocalyptic number.

It is an amenable number.

5057145721 is a deficient number, since it is larger than the sum of its proper divisors (1).

5057145721 is an equidigital number, since it uses as much as digits as its factorization.

5057145721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49000, while the sum is 37.

The square root of 5057145721 is about 71113.6113623827. The cubic root of 5057145721 is about 1716.4658051642.

The spelling of 5057145721 in words is "five billion, fifty-seven million, one hundred forty-five thousand, seven hundred twenty-one".