305071472825 has 72 divisors (see below), whose sum is σ = 449136342720. Its totient is φ = 204886281600.

The previous prime is 305071472819. The next prime is 305071472861. The reversal of 305071472825 is 528274170503.

It is not a de Polignac number, because 305071472825 - 2²⁰ = 305070424249 is a prime.

It is a super-2 number, since 2×305071472825² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 40184780 + ... + 40192370.

It is an arithmetic number, because the mean of its divisors is an integer number (6238004760).

Almost surely, 2^305071472825 is an apocalyptic number.

305071472825 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

305071472825 is a deficient number, since it is larger than the sum of its proper divisors (144064869895).

305071472825 is a wasteful number, since it uses less digits than its factorization.

305071472825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8287 (or 8275 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 305071472825 in words is "three hundred five billion, seventy-one million, four hundred seventy-two thousand, eight hundred twenty-five".