25727245530 has 32 divisors (see below), whose sum is σ = 70566159744. Its totient is φ = 5880513216.

The previous prime is 25727245519. The next prime is 25727245547. The reversal of 25727245530 is 3554272752.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61255137 + ... + 61255556.

It is an arithmetic number, because the mean of its divisors is an integer number (2205192492).

Almost surely, 2^25727245530 is an apocalyptic number.

25727245530 is an abundant number, since it is smaller than the sum of its proper divisors (44838914214).

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

25727245530 is a wasteful number, since it uses less digits than its factorization.

25727245530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122510710.

The product of its (nonzero) digits is 588000, while the sum is 42.

The spelling of 25727245530 in words is "twenty-five billion, seven hundred twenty-seven million, two hundred forty-five thousand, five hundred thirty".