528557755825 has 24 divisors (see below), whose sum is σ = 716278351680. Its totient is φ = 383715393600.

The previous prime is 528557755783. The next prime is 528557755879.

528557755825 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 528557755825 - 2¹⁷ = 528557624753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1572165 + ... + 1878514.

It is an arithmetic number, because the mean of its divisors is an integer number (29844931320).

Almost surely, 2^528557755825 is an apocalyptic number.

528557755825 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

528557755825 is a deficient number, since it is larger than the sum of its proper divisors (187720595855).

528557755825 is a wasteful number, since it uses less digits than its factorization.

528557755825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451257 (or 3451252 counting only the distinct ones).

The product of its digits is 196000000, while the sum is 64.

The spelling of 528557755825 in words is "five hundred twenty-eight billion, five hundred fifty-seven million, seven hundred fifty-five thousand, eight hundred twenty-five".