25086780733 has 12 divisors (see below), whose sum is σ = 29405356992. Its totient is φ = 21338804760.

The previous prime is 25086780661. The next prime is 25086780767. The reversal of 25086780733 is 33708768052.

It is not a de Polignac number, because 25086780733 - 2⁹ = 25086780221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25086780533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1947685 + ... + 1960522.

It is an arithmetic number, because the mean of its divisors is an integer number (2450446416).

Almost surely, 2^25086780733 is an apocalyptic number.

It is an amenable number.

25086780733 is a deficient number, since it is larger than the sum of its proper divisors (4318576259).

25086780733 is a wasteful number, since it uses less digits than its factorization.

25086780733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908352 (or 3908345 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 25086780733 in words is "twenty-five billion, eighty-six million, seven hundred eighty thousand, seven hundred thirty-three".