25020534544 has 40 divisors (see below), whose sum is σ = 50601225600. Its totient is φ = 11962503168.

The previous prime is 25020534523. The next prime is 25020534547. The reversal of 25020534544 is 44543502052.

It is not an unprimeable number, because it can be changed into a prime (25020534547) 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, 1377232 + ... + 1395280.

It is an arithmetic number, because the mean of its divisors is an integer number (1265030640).

Almost surely, 2^25020534544 is an apocalyptic number.

It is an amenable number.

25020534544 is an abundant number, since it is smaller than the sum of its proper divisors (25580691056).

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

25020534544 is a wasteful number, since it uses less digits than its factorization.

25020534544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21847 (or 21841 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 34.

The spelling of 25020534544 in words is "twenty-five billion, twenty million, five hundred thirty-four thousand, five hundred forty-four".