25525536870 has 32 divisors (see below), whose sum is σ = 62755469280. Its totient is φ = 6640789760.

The previous prime is 25525536853. The next prime is 25525536901. The reversal of 25525536870 is 7863552552.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10375005 + ... + 10377464.

It is an arithmetic number, because the mean of its divisors is an integer number (1961108415).

Almost surely, 2^25525536870 is an apocalyptic number.

25525536870 is an abundant number, since it is smaller than the sum of its proper divisors (37229932410).

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

25525536870 is a wasteful number, since it uses less digits than its factorization.

25525536870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20752520.

The product of its (nonzero) digits is 2520000, while the sum is 48.

The spelling of 25525536870 in words is "twenty-five billion, five hundred twenty-five million, five hundred thirty-six thousand, eight hundred seventy".