25260266250 has 60 divisors (see below), whose sum is σ = 68391359322. Its totient is φ = 6736068000.

The previous prime is 25260266249. The next prime is 25260266287. The reversal of 25260266250 is 5266206252.

25260266250 is a `hidden beast` number, since 2 + 5 + 2 + 6 + 0 + 26 + 625 + 0 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 1415038689 + 23845227561 = 37617^2 + 154419^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1111429 + ... + 1133928.

Almost surely, 2^25260266250 is an apocalyptic number.

25260266250 is an abundant number, since it is smaller than the sum of its proper divisors (43131093072).

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

25260266250 is a wasteful number, since it uses less digits than its factorization.

25260266250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245385 (or 2245367 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 25260266250 in words is "twenty-five billion, two hundred sixty million, two hundred sixty-six thousand, two hundred fifty".