25295209420 has 48 divisors (see below), whose sum is σ = 57250958688. Its totient is φ = 9332444160.

The previous prime is 25295209403. The next prime is 25295209421. The reversal of 25295209420 is 2490259252.

It is not an unprimeable number, because it can be changed into a prime (25295209421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299715 + ... + 374725.

It is an arithmetic number, because the mean of its divisors is an integer number (1192728306).

Almost surely, 2^25295209420 is an apocalyptic number.

25295209420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25295209420 is an abundant number, since it is smaller than the sum of its proper divisors (31955749268).

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

25295209420 is a wasteful number, since it uses less digits than its factorization.

25295209420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76330 (or 76328 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 25295209420 in words is "twenty-five billion, two hundred ninety-five million, two hundred nine thousand, four hundred twenty".