6256557610145 has 4 divisors (see below), whose sum is σ = 7507869132180. Its totient is φ = 5005246088112.

The previous prime is 6256557610117. The next prime is 6256557610151. The reversal of 6256557610145 is 5410167556526.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4651630951696 + 1604926658449 = 2156764^2 + 1266857^2 .

It is a cyclic number.

It is not a de Polignac number, because 6256557610145 - 2¹² = 6256557606049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625655761010 + ... + 625655761019.

It is an arithmetic number, because the mean of its divisors is an integer number (1876967283045).

Almost surely, 2^{6256557610145} is an apocalyptic number.

It is an amenable number.

6256557610145 is a deficient number, since it is larger than the sum of its proper divisors (1251311522035).

6256557610145 is a wasteful number, since it uses less digits than its factorization.

6256557610145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251311522034.

The product of its (nonzero) digits is 7560000, while the sum is 53.

The spelling of 6256557610145 in words is "six trillion, two hundred fifty-six billion, five hundred fifty-seven million, six hundred ten thousand, one hundred forty-five".