25030506083561 has 24 divisors (see below), whose sum is σ = 28007006361600. Its totient is φ = 22349337753600.

The previous prime is 25030506083491. The next prime is 25030506083581. The reversal of 25030506083561 is 16538060503052.

It is not a de Polignac number, because 25030506083561 - 2¹⁰ = 25030506082537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25030506083581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5029016 + ... + 8680553.

It is an arithmetic number, because the mean of its divisors is an integer number (1166958598400).

Almost surely, 2^{25030506083561} is an apocalyptic number.

It is an amenable number.

25030506083561 is a deficient number, since it is larger than the sum of its proper divisors (2976500278039).

25030506083561 is a wasteful number, since it uses less digits than its factorization.

25030506083561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13709861 (or 13709850 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 25030506083561 in words is "twenty-five trillion, thirty billion, five hundred six million, eighty-three thousand, five hundred sixty-one".