25312031043 has 16 divisors (see below), whose sum is σ = 36354415776. Its totient is φ = 15572805120.

The previous prime is 25312031033. The next prime is 25312031057. The reversal of 25312031043 is 34013021352.

It is not a de Polignac number, because 25312031043 - 2⁵ = 25312031011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25312031033) 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 15 ways as a sum of consecutive naturals, for example, 85213 + ... + 240593.

It is an arithmetic number, because the mean of its divisors is an integer number (2272150986).

Almost surely, 2^25312031043 is an apocalyptic number.

25312031043 is a deficient number, since it is larger than the sum of its proper divisors (11042384733).

25312031043 is a wasteful number, since it uses less digits than its factorization.

25312031043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159574.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 25312031043 its reverse (34013021352), we get a palindrome (59325052395).

The spelling of 25312031043 in words is "twenty-five billion, three hundred twelve million, thirty-one thousand, forty-three".