25541045431 has 16 divisors (see below), whose sum is σ = 29399529600. Its totient is φ = 21944498400.

The previous prime is 25541045423. The next prime is 25541045447. The reversal of 25541045431 is 13454014552.

It is not a de Polignac number, because 25541045431 - 2³ = 25541045423 is a prime.

It is a super-2 number, since 2×25541045431² (a number of 22 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 (25541042431) 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, 58260 + ... + 233401.

It is an arithmetic number, because the mean of its divisors is an integer number (1837470600).

Almost surely, 2^25541045431 is an apocalyptic number.

25541045431 is a deficient number, since it is larger than the sum of its proper divisors (3858484169).

25541045431 is a wasteful number, since it uses less digits than its factorization.

25541045431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292110.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 25541045431 its reverse (13454014552), we get a palindrome (38995059983).

The spelling of 25541045431 in words is "twenty-five billion, five hundred forty-one million, forty-five thousand, four hundred thirty-one".