25266002552 has 128 divisors (see below), whose sum is σ = 58066675200. Its totient is φ = 10066249728.

The previous prime is 25266002539. The next prime is 25266002569. The reversal of 25266002552 is 25520066252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17630828 + ... + 17632260.

It is an arithmetic number, because the mean of its divisors is an integer number (453645900).

Almost surely, 2^25266002552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25266002552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29033337600).

25266002552 is an abundant number, since it is smaller than the sum of its proper divisors (32800672648).

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

25266002552 is a wasteful number, since it uses less digits than its factorization.

25266002552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765 (or 1761 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 25266002552 in words is "twenty-five billion, two hundred sixty-six million, two thousand, five hundred fifty-two".