25055554431431 has 8 divisors (see below), whose sum is σ = 25528379494464. Its totient is φ = 24582732285280.

The previous prime is 25055554431421. The next prime is 25055554431461. The reversal of 25055554431431 is 13413445555052.

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

It is a cyclic number.

It is not a de Polignac number, because 25055554431431 - 2³⁰ = 25054480689607 is a prime.

It is a super-2 number, since 2×25055554431431² (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 (25055554431421) 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, 25290050 + ... + 26262096.

It is an arithmetic number, because the mean of its divisors is an integer number (3191047436808).

Almost surely, 2^{25055554431431} is an apocalyptic number.

25055554431431 is a deficient number, since it is larger than the sum of its proper divisors (472825063033).

25055554431431 is an equidigital number, since it uses as much as digits as its factorization.

25055554431431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458441.

The product of its (nonzero) digits is 3600000, while the sum is 47.

Adding to 25055554431431 its reverse (13413445555052), we get a palindrome (38468999986483).

The spelling of 25055554431431 in words is "twenty-five trillion, fifty-five billion, five hundred fifty-four million, four hundred thirty-one thousand, four hundred thirty-one".