8125520078226 has 64 divisors (see below), whose sum is σ = 17211893326848. Its totient is φ = 2551901592768.

The previous prime is 8125520078209. The next prime is 8125520078233. The reversal of 8125520078226 is 6228700255218.

It is a happy number.

It is a super-2 number, since 2×8125520078226² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221488081 + ... + 221524763.

It is an arithmetic number, because the mean of its divisors is an integer number (268935833232).

Almost surely, 2^{8125520078226} is an apocalyptic number.

8125520078226 is an abundant number, since it is smaller than the sum of its proper divisors (9086373248622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8125520078226 is a wasteful number, since it uses less digits than its factorization.

8125520078226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60735.

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 8125520078226 in words is "eight trillion, one hundred twenty-five billion, five hundred twenty million, seventy-eight thousand, two hundred twenty-six".