2506536406 has 32 divisors (see below), whose sum is σ = 4361052960. Its totient is φ = 1067827200.

The previous prime is 2506536391. The next prime is 2506536433. The reversal of 2506536406 is 6046356052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76230 + ... + 104038.

It is an arithmetic number, because the mean of its divisors is an integer number (136282905).

Almost surely, 2^2506536406 is an apocalyptic number.

2506536406 is a deficient number, since it is larger than the sum of its proper divisors (1854516554).

2506536406 is a wasteful number, since it uses less digits than its factorization.

2506536406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28080.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 2506536406 is about 50065.3213911586. The cubic root of 2506536406 is about 1358.3906146327.

The spelling of 2506536406 in words is "two billion, five hundred six million, five hundred thirty-six thousand, four hundred six".