26557575252 has 24 divisors (see below), whose sum is σ = 66734420256. Its totient is φ = 8171561568.

The previous prime is 26557575251. The next prime is 26557575257. The reversal of 26557575252 is 25257575562.

It is a junction number, because it is equal to n+sod(n) for n = 26557575195 and 26557575204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26557575251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85120278 + ... + 85120589.

It is an arithmetic number, because the mean of its divisors is an integer number (2780600844).

Almost surely, 2^26557575252 is an apocalyptic number.

It is an amenable number.

26557575252 is an abundant number, since it is smaller than the sum of its proper divisors (40176845004).

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

26557575252 is a wasteful number, since it uses less digits than its factorization.

26557575252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170240887 (or 170240885 counting only the distinct ones).

The product of its digits is 7350000, while the sum is 51.

The spelling of 26557575252 in words is "twenty-six billion, five hundred fifty-seven million, five hundred seventy-five thousand, two hundred fifty-two".