2506431457 has 2 divisors, whose sum is σ = 2506431458. Its totient is φ = 2506431456.

The previous prime is 2506431419. The next prime is 2506431461. The reversal of 2506431457 is 7541346052.

2506431457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2483925921 + 22505536 = 49839^2 + 4744^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2506431457 is a prime.

It is not a weakly prime, because it can be changed into another prime (2506431407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253215728 + 1253215729.

It is an arithmetic number, because the mean of its divisors is an integer number (1253215729).

Almost surely, 2^2506431457 is an apocalyptic number.

It is an amenable number.

2506431457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506431457 is an equidigital number, since it uses as much as digits as its factorization.

2506431457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 2506431457 is about 50064.2732594812. The cubic root of 2506431457 is about 1358.3716557051.

The spelling of 2506431457 in words is "two billion, five hundred six million, four hundred thirty-one thousand, four hundred fifty-seven".