25320503315 has 8 divisors (see below), whose sum is σ = 30750684048. Its totient is φ = 20012349280.

The previous prime is 25320503267. The next prime is 25320503317. The reversal of 25320503315 is 51330502352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25320503315 - 2⁶ = 25320503251 is a prime.

It is a super-2 number, since 2×25320503315² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25320503317) 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, 30506216 + ... + 30507045.

It is an arithmetic number, because the mean of its divisors is an integer number (3843835506).

Almost surely, 2^25320503315 is an apocalyptic number.

25320503315 is a deficient number, since it is larger than the sum of its proper divisors (5430180733).

25320503315 is an equidigital number, since it uses as much as digits as its factorization.

25320503315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61013349.

The product of its (nonzero) digits is 13500, while the sum is 29.

The spelling of 25320503315 in words is "twenty-five billion, three hundred twenty million, five hundred three thousand, three hundred fifteen".