25424355552 has 48 divisors (see below), whose sum is σ = 67264468992. Its totient is φ = 8408050560.

The previous prime is 25424355547. The next prime is 25424355581. The reversal of 25424355552 is 25555342452.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 1030474 + ... + 1054857.

It is an arithmetic number, because the mean of its divisors is an integer number (1401343104).

Almost surely, 2^25424355552 is an apocalyptic number.

It is an amenable number.

25424355552 is an abundant number, since it is smaller than the sum of its proper divisors (41840113440).

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

25424355552 is a wasteful number, since it uses less digits than its factorization.

25424355552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085471 (or 2085463 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 42.

The spelling of 25424355552 in words is "twenty-five billion, four hundred twenty-four million, three hundred fifty-five thousand, five hundred fifty-two".