25204947340 has 12 divisors (see below), whose sum is σ = 52930389456. Its totient is φ = 10081978928.

The previous prime is 25204947329. The next prime is 25204947349. The reversal of 25204947340 is 4374940252.

It is a junction number, because it is equal to n+sod(n) for n = 25204947293 and 25204947302.

It is not an unprimeable number, because it can be changed into a prime (25204947349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630123664 + ... + 630123703.

It is an arithmetic number, because the mean of its divisors is an integer number (4410865788).

Almost surely, 2^25204947340 is an apocalyptic number.

25204947340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25204947340 is an abundant number, since it is smaller than the sum of its proper divisors (27725442116).

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

25204947340 is a wasteful number, since it uses less digits than its factorization.

25204947340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260247376 (or 1260247374 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 25204947340 in words is "twenty-five billion, two hundred four million, nine hundred forty-seven thousand, three hundred forty".