25211985373 has 8 divisors (see below), whose sum is σ = 25257265208. Its totient is φ = 25166744064.

The previous prime is 25211985367. The next prime is 25211985377. The reversal of 25211985373 is 37358911252.

It can be written as a sum of positive squares in 4 ways, for example, as 141063129 + 25070922244 = 11877^2 + 158338^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25211985373 - 2⁵ = 25211985341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25211985377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1507465 + ... + 1524097.

It is an arithmetic number, because the mean of its divisors is an integer number (3157158151).

Almost surely, 2^25211985373 is an apocalyptic number.

It is an amenable number.

25211985373 is a deficient number, since it is larger than the sum of its proper divisors (45279835).

25211985373 is a wasteful number, since it uses less digits than its factorization.

25211985373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19263.

The product of its digits is 453600, while the sum is 46.

The spelling of 25211985373 in words is "twenty-five billion, two hundred eleven million, nine hundred eighty-five thousand, three hundred seventy-three".