25241555640631 has 16 divisors (see below), whose sum is σ = 28742442174720. Its totient is φ = 21942325419520.

The previous prime is 25241555640629. The next prime is 25241555640647. The reversal of 25241555640631 is 13604655514252.

It is not a de Polignac number, because 25241555640631 - 2¹ = 25241555640629 is a prime.

It is a super-2 number, since 2×25241555640631² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25241555640661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14763946 + ... + 16384663.

It is an arithmetic number, because the mean of its divisors is an integer number (1796402635920).

Almost surely, 2^{25241555640631} is an apocalyptic number.

25241555640631 is a deficient number, since it is larger than the sum of its proper divisors (3500886534089).

25241555640631 is a wasteful number, since it uses less digits than its factorization.

25241555640631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31151846.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 25241555640631 in words is "twenty-five trillion, two hundred forty-one billion, five hundred fifty-five million, six hundred forty thousand, six hundred thirty-one".