56526771251 has 4 divisors (see below), whose sum is σ = 57370454472. Its totient is φ = 55683088032.

The previous prime is 56526771227. The next prime is 56526771269. The reversal of 56526771251 is 15217762565.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56526771251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56526771196 and 56526771205.

It is not an unprimeable number, because it can be changed into a prime (56526771211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421841510 + ... + 421841643.

It is an arithmetic number, because the mean of its divisors is an integer number (14342613618).

Almost surely, 2^56526771251 is an apocalyptic number.

56526771251 is a deficient number, since it is larger than the sum of its proper divisors (843683221).

56526771251 is an equidigital number, since it uses as much as digits as its factorization.

56526771251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843683220.

The product of its digits is 882000, while the sum is 47.

The spelling of 56526771251 in words is "fifty-six billion, five hundred twenty-six million, seven hundred seventy-one thousand, two hundred fifty-one".