25544240032 has 12 divisors (see below), whose sum is σ = 50290222626. Its totient is φ = 12772120000.

The previous prime is 25544240023. The next prime is 25544240041. The reversal of 25544240032 is 23004244552.

It is an interprime number because it is at equal distance from previous prime (25544240023) and next prime (25544240041).

It can be written as a sum of positive squares in only one way, i.e., 16089400336 + 9454839696 = 126844^2 + 97236^2 .

It is a super-2 number, since 2×25544240032² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25544239976 and 25544240003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399128719 + ... + 399128782.

Almost surely, 2^25544240032 is an apocalyptic number.

It is an amenable number.

25544240032 is a deficient number, since it is larger than the sum of its proper divisors (24745982594).

25544240032 is an equidigital number, since it uses as much as digits as its factorization.

25544240032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798257511 (or 798257503 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 25544240032 its reverse (23004244552), we get a palindrome (48548484584).

The spelling of 25544240032 in words is "twenty-five billion, five hundred forty-four million, two hundred forty thousand, thirty-two".