2515511057 has 2 divisors, whose sum is σ = 2515511058. Its totient is φ = 2515511056.

The previous prime is 2515510999. The next prime is 2515511071. The reversal of 2515511057 is 7501155152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1784133121 + 731377936 = 42239^2 + 27044^2 .

It is a cyclic number.

It is not a de Polignac number, because 2515511057 - 2⁶ = 2515510993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2515511077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257755528 + 1257755529.

It is an arithmetic number, because the mean of its divisors is an integer number (1257755529).

Almost surely, 2^2515511057 is an apocalyptic number.

It is an amenable number.

2515511057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515511057 is an equidigital number, since it uses as much as digits as its factorization.

2515511057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8750, while the sum is 32.

The square root of 2515511057 is about 50154.8707205990. The cubic root of 2515511057 is about 1360.0099222532.

The spelling of 2515511057 in words is "two billion, five hundred fifteen million, five hundred eleven thousand, fifty-seven".