25654029480 has 128 divisors (see below), whose sum is σ = 85656499200. Its totient is φ = 6829629696.

The previous prime is 25654029461. The next prime is 25654029589. The reversal of 25654029480 is 8492045652.

25654029480 is a `hidden beast` number, since 2 + 5 + 6 + 540 + 29 + 4 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 635994 + ... + 675126.

It is an arithmetic number, because the mean of its divisors is an integer number (669191400).

Almost surely, 2^25654029480 is an apocalyptic number.

25654029480 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 25654029480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42828249600).

25654029480 is an abundant number, since it is smaller than the sum of its proper divisors (60002469720).

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

25654029480 is a wasteful number, since it uses less digits than its factorization.

25654029480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39760 (or 39750 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 25654029480 in words is "twenty-five billion, six hundred fifty-four million, twenty-nine thousand, four hundred eighty".