25227866880 has 576 divisors, whose sum is σ = 93299606400. Its totient is φ = 6449725440.

The previous prime is 25227866869. The next prime is 25227866891. The reversal of 25227866880 is 8866872252.

It is an interprime number because it is at equal distance from previous prime (25227866869) and next prime (25227866891).

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 139380390 + ... + 139380570.

Almost surely, 2^25227866880 is an apocalyptic number.

25227866880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

25227866880 is the 100455-th heptagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25227866880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46649803200).

25227866880 is an abundant number, since it is smaller than the sum of its proper divisors (68071739520).

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

25227866880 is a wasteful number, since it uses less digits than its factorization.

25227866880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 25227866880 in words is "twenty-five billion, two hundred twenty-seven million, eight hundred sixty-six thousand, eight hundred eighty".