25255553000 has 32 divisors (see below), whose sum is σ = 59097996360. Its totient is φ = 10102220800.

The previous prime is 25255552991. The next prime is 25255553003. The reversal of 25255553000 is 35555252.

It can be written as a sum of positive squares in 4 ways, for example, as 15671534596 + 9584018404 = 125186^2 + 97898^2 .

It is not an unprimeable number, because it can be changed into a prime (25255553003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12626777 + ... + 12628776.

Almost surely, 2^25255553000 is an apocalyptic number.

25255553000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25255553000 is an abundant number, since it is smaller than the sum of its proper divisors (33842443360).

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

25255553000 is a wasteful number, since it uses less digits than its factorization.

25255553000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25255574 (or 25255560 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 32.

The spelling of 25255553000 in words is "twenty-five billion, two hundred fifty-five million, five hundred fifty-three thousand".