25372704640225 has 24 divisors (see below), whose sum is σ = 31620588152832. Its totient is φ = 20196047913600.

The previous prime is 25372704640211. The next prime is 25372704640259. The reversal of 25372704640225 is 52204640727352.

It is not a de Polignac number, because 25372704640225 - 2¹⁷ = 25372704509153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8914965 + ... + 11411485.

It is an arithmetic number, because the mean of its divisors is an integer number (1317524506368).

Almost surely, 2^{25372704640225} is an apocalyptic number.

25372704640225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25372704640225 is a deficient number, since it is larger than the sum of its proper divisors (6247883512607).

25372704640225 is a wasteful number, since it uses less digits than its factorization.

25372704640225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498577 (or 2498572 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 49.

The spelling of 25372704640225 in words is "twenty-five trillion, three hundred seventy-two billion, seven hundred four million, six hundred forty thousand, two hundred twenty-five".