25064670040505 has 16 divisors (see below), whose sum is σ = 30379597902144. Its totient is φ = 19850664757440.

The previous prime is 25064670040499. The next prime is 25064670040511. The reversal of 25064670040505 is 50504007646052.

It is an interprime number because it is at equal distance from previous prime (25064670040499) and next prime (25064670040511).

It is not a de Polignac number, because 25064670040505 - 2²⁴ = 25064653263289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15344411 + ... + 16899120.

It is an arithmetic number, because the mean of its divisors is an integer number (1898724868884).

Almost surely, 2^{25064670040505} is an apocalyptic number.

It is an amenable number.

25064670040505 is a deficient number, since it is larger than the sum of its proper divisors (5314927861639).

25064670040505 is a wasteful number, since it uses less digits than its factorization.

25064670040505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32245096.

The product of its (nonzero) digits is 1008000, while the sum is 44.

Adding to 25064670040505 its reverse (50504007646052), we get a palindrome (75568677686557).

The spelling of 25064670040505 in words is "twenty-five trillion, sixty-four billion, six hundred seventy million, forty thousand, five hundred five".