25345635577340 has 96 divisors (see below), whose sum is σ = 60340210398720. Its totient is φ = 8865366886656.

The previous prime is 25345635577291. The next prime is 25345635577343. The reversal of 25345635577340 is 4377553654352.

It is a self number, because there is not a number n which added to its sum of digits gives 25345635577340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25345635577343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99398849 + ... + 99653511.

It is an arithmetic number, because the mean of its divisors is an integer number (628543858320).

Almost surely, 2^{25345635577340} is an apocalyptic number.

25345635577340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25345635577340 is an abundant number, since it is smaller than the sum of its proper divisors (34994574821380).

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

25345635577340 is a wasteful number, since it uses less digits than its factorization.

25345635577340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274851 (or 274849 counting only the distinct ones).

The product of its (nonzero) digits is 158760000, while the sum is 59.

The spelling of 25345635577340 in words is "twenty-five trillion, three hundred forty-five billion, six hundred thirty-five million, five hundred seventy-seven thousand, three hundred forty".