25006552000 has 56 divisors (see below), whose sum is σ = 61928745840. Its totient is φ = 10002617600.

The previous prime is 25006551991. The next prime is 25006552019. The reversal of 25006552000 is 25560052.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1554910 + ... + 1570909.

Almost surely, 2^25006552000 is an apocalyptic number.

25006552000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25006552000 is an abundant number, since it is smaller than the sum of its proper divisors (36922193840).

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

25006552000 is an equidigital number, since it uses as much as digits as its factorization.

25006552000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125846 (or 3125826 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 25006552000 in words is "twenty-five billion, six million, five hundred fifty-two thousand".