26525356506 has 48 divisors (see below), whose sum is σ = 62707252608. Its totient is φ = 8036582400.

The previous prime is 26525356493. The next prime is 26525356519. The reversal of 26525356506 is 60565352562.

26525356506 is a `hidden beast` number, since 2 + 6 + 52 + 535 + 65 + 0 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (26525356493) and next prime (26525356519).

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, 1966746 + ... + 1980186.

It is an arithmetic number, because the mean of its divisors is an integer number (1306401096).

Almost surely, 2^26525356506 is an apocalyptic number.

26525356506 is an abundant number, since it is smaller than the sum of its proper divisors (36181896102).

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

26525356506 is a wasteful number, since it uses less digits than its factorization.

26525356506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23427 (or 23424 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The spelling of 26525356506 in words is "twenty-six billion, five hundred twenty-five million, three hundred fifty-six thousand, five hundred six".