25152165305 has 16 divisors (see below), whose sum is σ = 31231818000. Its totient is φ = 19422627840.

The previous prime is 25152165299. The next prime is 25152165349. The reversal of 25152165305 is 50356125152.

It can be written as a sum of positive squares in 8 ways, for example, as 22306729 + 25129858576 = 4723^2 + 158524^2 .

It is not a de Polignac number, because 25152165305 - 2⁴ = 25152165289 is a prime.

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, 565685 + ... + 608525.

It is an arithmetic number, because the mean of its divisors is an integer number (1951988625).

Almost surely, 2^25152165305 is an apocalyptic number.

It is an amenable number.

25152165305 is a deficient number, since it is larger than the sum of its proper divisors (6079652695).

25152165305 is a wasteful number, since it uses less digits than its factorization.

25152165305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46924.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 25152165305 in words is "twenty-five billion, one hundred fifty-two million, one hundred sixty-five thousand, three hundred five".