25450165260 has 144 divisors (see below), whose sum is σ = 83214540864. Its totient is φ = 6258829824.

The previous prime is 25450165259. The next prime is 25450165283. The reversal of 25450165260 is 6256105452.

25450165260 is a `hidden beast` number, since 2 + 545 + 0 + 1 + 6 + 52 + 60 = 666.

It is a super-2 number, since 2×25450165260² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2857374 + ... + 2866266.

It is an arithmetic number, because the mean of its divisors is an integer number (577878756).

Almost surely, 2^25450165260 is an apocalyptic number.

25450165260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25450165260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41607270432).

25450165260 is an abundant number, since it is smaller than the sum of its proper divisors (57764375604).

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

25450165260 is a wasteful number, since it uses less digits than its factorization.

25450165260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10144 (or 10139 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 25450165260 in words is "twenty-five billion, four hundred fifty million, one hundred sixty-five thousand, two hundred sixty".