25501031112 has 16 divisors (see below), whose sum is σ = 63752577840. Its totient is φ = 8500343696.

The previous prime is 25501031107. The next prime is 25501031113. The reversal of 25501031112 is 21113010552.

It is not an unprimeable number, because it can be changed into a prime (25501031113) 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 3 ways as a sum of consecutive naturals, for example, 531271458 + ... + 531271505.

It is an arithmetic number, because the mean of its divisors is an integer number (3984536115).

Almost surely, 2^25501031112 is an apocalyptic number.

It is an amenable number.

25501031112 is an abundant number, since it is smaller than the sum of its proper divisors (38251546728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25501031112 is a wasteful number, since it uses less digits than its factorization.

25501031112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062542972 (or 1062542968 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 25501031112 its reverse (21113010552), we get a palindrome (46614041664).

The spelling of 25501031112 in words is "twenty-five billion, five hundred one million, thirty-one thousand, one hundred twelve".