25225144031 has 8 divisors (see below), whose sum is σ = 25267157760. Its totient is φ = 25183161432.

The previous prime is 25225143973. The next prime is 25225144067. The reversal of 25225144031 is 13044152252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25225144031 is a prime.

It is a super-2 number, since 2×25225144031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25225143985 and 25225144003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225144831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2040836 + ... + 2053158.

It is an arithmetic number, because the mean of its divisors is an integer number (3158394720).

Almost surely, 2^25225144031 is an apocalyptic number.

25225144031 is a deficient number, since it is larger than the sum of its proper divisors (42013729).

25225144031 is a wasteful number, since it uses less digits than its factorization.

25225144031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15565.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 25225144031 its reverse (13044152252), we get a palindrome (38269296283).

The spelling of 25225144031 in words is "twenty-five billion, two hundred twenty-five million, one hundred forty-four thousand, thirty-one".