25250825552 has 10 divisors (see below), whose sum is σ = 48923474538. Its totient is φ = 12625412768.

The previous prime is 25250825539. The next prime is 25250825581. The reversal of 25250825552 is 25552805252.

It can be written as a sum of positive squares in only one way, i.e., 14968054336 + 10282771216 = 122344^2 + 101404^2 .

It is a super-2 number, since 2×25250825552² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 789088283 + ... + 789088314.

Almost surely, 2^25250825552 is an apocalyptic number.

It is an amenable number.

25250825552 is a deficient number, since it is larger than the sum of its proper divisors (23672648986).

25250825552 is a wasteful number, since it uses less digits than its factorization.

25250825552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578176605 (or 1578176599 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 41.

The spelling of 25250825552 in words is "twenty-five billion, two hundred fifty million, eight hundred twenty-five thousand, five hundred fifty-two".