25305275505250 has 64 divisors (see below), whose sum is σ = 51026267859840. Its totient is φ = 9341502379200.

The previous prime is 25305275505197. The next prime is 25305275505281. The reversal of 25305275505250 is 5250557250352.

It is a self number, because there is not a number n which added to its sum of digits gives 25305275505250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14525461 + ... + 16174039.

It is an arithmetic number, because the mean of its divisors is an integer number (797285435310).

Almost surely, 2^{25305275505250} is an apocalyptic number.

25305275505250 is an abundant number, since it is smaller than the sum of its proper divisors (25720992354590).

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

25305275505250 is a wasteful number, since it uses less digits than its factorization.

25305275505250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653332 (or 1653322 counting only the distinct ones).

The product of its (nonzero) digits is 2625000, while the sum is 46.

The spelling of 25305275505250 in words is "twenty-five trillion, three hundred five billion, two hundred seventy-five million, five hundred five thousand, two hundred fifty".