56528848128787 has 4 divisors (see below), whose sum is σ = 56529378569536. Its totient is φ = 56528317688040.

The previous prime is 56528848128719. The next prime is 56528848128793. The reversal of 56528848128787 is 78782184882565.

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

It is a cyclic number.

It is not a de Polignac number, because 56528848128787 - 2⁷ = 56528848128659 is a prime.

It is a super-2 number, since 2×56528848128787² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56528848128287) 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, 265060488 + ... + 265273669.

It is an arithmetic number, because the mean of its divisors is an integer number (14132344642384).

Almost surely, 2^{56528848128787} is an apocalyptic number.

56528848128787 is a deficient number, since it is larger than the sum of its proper divisors (530440749).

56528848128787 is a wasteful number, since it uses less digits than its factorization.

56528848128787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530440748.

The product of its digits is 3853516800, while the sum is 79.

The spelling of 56528848128787 in words is "fifty-six trillion, five hundred twenty-eight billion, eight hundred forty-eight million, one hundred twenty-eight thousand, seven hundred eighty-seven".