25091129031 has 16 divisors (see below), whose sum is σ = 33802838784. Its totient is φ = 16553746944.

The previous prime is 25091129027. The next prime is 25091129053. The reversal of 25091129031 is 13092119052.

It is not a de Polignac number, because 25091129031 - 2² = 25091129027 is a prime.

It is a super-2 number, since 2×25091129031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25091128983 and 25091129001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25091129071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269991 + ... + 350823.

It is an arithmetic number, because the mean of its divisors is an integer number (2112677424).

Almost surely, 2^25091129031 is an apocalyptic number.

25091129031 is a deficient number, since it is larger than the sum of its proper divisors (8711709753).

25091129031 is a wasteful number, since it uses less digits than its factorization.

25091129031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81910.

The product of its (nonzero) digits is 4860, while the sum is 33.

The spelling of 25091129031 in words is "twenty-five billion, ninety-one million, one hundred twenty-nine thousand, thirty-one".