25056657035 has 4 divisors (see below), whose sum is σ = 30067988448. Its totient is φ = 20045325624.

The previous prime is 25056657011. The next prime is 25056657047. The reversal of 25056657035 is 53075665052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25056657035 - 2²² = 25052462731 is a prime.

It is a super-2 number, since 2×25056657035² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505665699 + ... + 2505665708.

It is an arithmetic number, because the mean of its divisors is an integer number (7516997112).

Almost surely, 2^25056657035 is an apocalyptic number.

25056657035 is a deficient number, since it is larger than the sum of its proper divisors (5011331413).

25056657035 is an equidigital number, since it uses as much as digits as its factorization.

25056657035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011331412.

The product of its (nonzero) digits is 945000, while the sum is 44.

The spelling of 25056657035 in words is "twenty-five billion, fifty-six million, six hundred fifty-seven thousand, thirty-five".