25001252331 has 8 divisors (see below), whose sum is σ = 36365457984. Its totient is φ = 15152274120.

The previous prime is 25001252329. The next prime is 25001252347. The reversal of 25001252331 is 13325210052.

It is a happy number.

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

It is not a de Polignac number, because 25001252331 - 2¹ = 25001252329 is a prime.

It is a super-2 number, since 2×25001252331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25001252431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378806821 + ... + 378806886.

It is an arithmetic number, because the mean of its divisors is an integer number (4545682248).

Almost surely, 2^25001252331 is an apocalyptic number.

25001252331 is a deficient number, since it is larger than the sum of its proper divisors (11364205653).

25001252331 is a wasteful number, since it uses less digits than its factorization.

25001252331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757613721.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 25001252331 its reverse (13325210052), we get a palindrome (38326462383).

The spelling of 25001252331 in words is "twenty-five billion, one million, two hundred fifty-two thousand, three hundred thirty-one".