25152762641 has 4 divisors (see below), whose sum is σ = 26632336932. Its totient is φ = 23673188352.

The previous prime is 25152762629. The next prime is 25152762731. The reversal of 25152762641 is 14626725152.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22990140625 + 2162622016 = 151625^2 + 46504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25152762641 is a prime.

It is a super-2 number, since 2×25152762641² (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 (25152762611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739787120 + ... + 739787153.

It is an arithmetic number, because the mean of its divisors is an integer number (6658084233).

Almost surely, 2^25152762641 is an apocalyptic number.

It is an amenable number.

25152762641 is a deficient number, since it is larger than the sum of its proper divisors (1479574291).

25152762641 is a wasteful number, since it uses less digits than its factorization.

25152762641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479574290.

The product of its digits is 201600, while the sum is 41.

The spelling of 25152762641 in words is "twenty-five billion, one hundred fifty-two million, seven hundred sixty-two thousand, six hundred forty-one".