25465402613 has 8 divisors (see below), whose sum is σ = 29154290880. Its totient is φ = 21789257760.

The previous prime is 25465402609. The next prime is 25465402643. The reversal of 25465402613 is 31620456452.

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 25465402613 - 2² = 25465402609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25465402643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3181568 + ... + 3189561.

It is an arithmetic number, because the mean of its divisors is an integer number (3644286360).

Almost surely, 2^25465402613 is an apocalyptic number.

It is an amenable number.

25465402613 is a deficient number, since it is larger than the sum of its proper divisors (3688888267).

25465402613 is an equidigital number, since it uses as much as digits as its factorization.

25465402613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6371707.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 25465402613 in words is "twenty-five billion, four hundred sixty-five million, four hundred two thousand, six hundred thirteen".