2506007857 has 2 divisors, whose sum is σ = 2506007858. Its totient is φ = 2506007856.

The previous prime is 2506007843. The next prime is 2506007887. The reversal of 2506007857 is 7587006052.

2506007857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2300257521 + 205750336 = 47961^2 + 14344^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506007857 - 2¹⁵ = 2505975089 is a prime.

It is not a weakly prime, because it can be changed into another prime (2506007887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253003928 + 1253003929.

It is an arithmetic number, because the mean of its divisors is an integer number (1253003929).

Almost surely, 2^2506007857 is an apocalyptic number.

It is an amenable number.

2506007857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506007857 is an equidigital number, since it uses as much as digits as its factorization.

2506007857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 2506007857 is about 50060.0425189592. The cubic root of 2506007857 is about 1358.2951274269.

The spelling of 2506007857 in words is "two billion, five hundred six million, seven thousand, eight hundred fifty-seven".