2506078537 has 2 divisors, whose sum is σ = 2506078538. Its totient is φ = 2506078536.

The previous prime is 2506078507. The next prime is 2506078541. The reversal of 2506078537 is 7358706052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1647061056 + 859017481 = 40584^2 + 29309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2506078537 is a prime.

It is a super-2 number, since 2×2506078537² = 12560859267224120738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2506078493 and 2506078502.

It is not a weakly prime, because it can be changed into another prime (2506078507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253039268 + 1253039269.

It is an arithmetic number, because the mean of its divisors is an integer number (1253039269).

Almost surely, 2^2506078537 is an apocalyptic number.

It is an amenable number.

2506078537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506078537 is an equidigital number, since it uses as much as digits as its factorization.

2506078537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 2506078537 is about 50060.7484662385. The cubic root of 2506078537 is about 1358.3078971922.

The spelling of 2506078537 in words is "two billion, five hundred six million, seventy-eight thousand, five hundred thirty-seven".