25364046623 has 4 divisors (see below), whose sum is σ = 25779850728. Its totient is φ = 24948242520.

The previous prime is 25364046619. The next prime is 25364046647. The reversal of 25364046623 is 32664046352.

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 25364046623 - 2² = 25364046619 is a prime.

It is a super-2 number, since 2×25364046623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25364040623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207901961 + ... + 207902082.

It is an arithmetic number, because the mean of its divisors is an integer number (6444962682).

Almost surely, 2^25364046623 is an apocalyptic number.

25364046623 is a deficient number, since it is larger than the sum of its proper divisors (415804105).

25364046623 is an equidigital number, since it uses as much as digits as its factorization.

25364046623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415804104.

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 25364046623 in words is "twenty-five billion, three hundred sixty-four million, forty-six thousand, six hundred twenty-three".