25025454254240 has 96 divisors (see below), whose sum is σ = 64498544018496. Its totient is φ = 9100006696960.

The previous prime is 25025454254159. The next prime is 25025454254279. The reversal of 25025454254240 is 4245245452052.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 25025454254191 and 25025454254200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159153899 + ... + 159311061.

It is an arithmetic number, because the mean of its divisors is an integer number (671859833526).

Almost surely, 2^{25025454254240} is an apocalyptic number.

25025454254240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25025454254240 is an abundant number, since it is smaller than the sum of its proper divisors (39473089764256).

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

25025454254240 is a wasteful number, since it uses less digits than its factorization.

25025454254240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247662 (or 247654 counting only the distinct ones).

The product of its (nonzero) digits is 2560000, while the sum is 44.

The spelling of 25025454254240 in words is "twenty-five trillion, twenty-five billion, four hundred fifty-four million, two hundred fifty-four thousand, two hundred forty".