25315254152340 has 48 divisors (see below), whose sum is σ = 70968838996608. Its totient is φ = 6742531833984.

The previous prime is 25315254152273. The next prime is 25315254152371. The reversal of 25315254152340 is 4325145251352.

It is a super-2 number, since 2×25315254152340² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25315254152292 and 25315254152301.

It is a congruent number.

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, 256281667 + ... + 256380426.

It is an arithmetic number, because the mean of its divisors is an integer number (1478517479096).

Almost surely, 2^{25315254152340} is an apocalyptic number.

25315254152340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25315254152340 is an abundant number, since it is smaller than the sum of its proper divisors (45653584844268).

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

25315254152340 is a wasteful number, since it uses less digits than its factorization.

25315254152340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512662928 (or 512662926 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 25315254152340 in words is "twenty-five trillion, three hundred fifteen billion, two hundred fifty-four million, one hundred fifty-two thousand, three hundred forty".