25362429491 has 8 divisors (see below), whose sum is σ = 29025953280. Its totient is φ = 21708985608.

The previous prime is 25362429487. The next prime is 25362429503. The reversal of 25362429491 is 19492426352.

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 25362429491 - 2² = 25362429487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25362429401) 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, 2514581 + ... + 2524646.

It is an arithmetic number, because the mean of its divisors is an integer number (3628244160).

Almost surely, 2^25362429491 is an apocalyptic number.

25362429491 is a deficient number, since it is larger than the sum of its proper divisors (3663523789).

25362429491 is an equidigital number, since it uses as much as digits as its factorization.

25362429491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039953.

The product of its digits is 933120, while the sum is 47.

The spelling of 25362429491 in words is "twenty-five billion, three hundred sixty-two million, four hundred twenty-nine thousand, four hundred ninety-one".