7625515057 has 2 divisors, whose sum is σ = 7625515058. Its totient is φ = 7625515056.

The previous prime is 7625515039. The next prime is 7625515061. The reversal of 7625515057 is 7505155267.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6902120241 + 723394816 = 83079^2 + 26896^2 .

It is a cyclic number.

It is not a de Polignac number, because 7625515057 - 2²³ = 7617126449 is a prime.

It is not a weakly prime, because it can be changed into another prime (7625512057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3812757528 + 3812757529.

It is an arithmetic number, because the mean of its divisors is an integer number (3812757529).

Almost surely, 2^7625515057 is an apocalyptic number.

It is an amenable number.

7625515057 is a deficient number, since it is larger than the sum of its proper divisors (1).

7625515057 is an equidigital number, since it uses as much as digits as its factorization.

7625515057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367500, while the sum is 43.

The square root of 7625515057 is about 87324.1951408657. The cubic root of 7625515057 is about 1968.2929079397.

The spelling of 7625515057 in words is "seven billion, six hundred twenty-five million, five hundred fifteen thousand, fifty-seven".