25541455127 has 16 divisors (see below), whose sum is σ = 26767507968. Its totient is φ = 24325239840.

The previous prime is 25541455111. The next prime is 25541455133. The reversal of 25541455127 is 72155414552.

It is a cyclic number.

It is not a de Polignac number, because 25541455127 - 2⁴ = 25541455111 is a prime.

It is a super-2 number, since 2×25541455127² (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 (25541455627) 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, 7481873 + ... + 7485285.

It is an arithmetic number, because the mean of its divisors is an integer number (1672969248).

Almost surely, 2^25541455127 is an apocalyptic number.

25541455127 is a deficient number, since it is larger than the sum of its proper divisors (1226052841).

25541455127 is a wasteful number, since it uses less digits than its factorization.

25541455127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4750.

The product of its digits is 280000, while the sum is 41.

Adding to 25541455127 its reverse (72155414552), we get a palindrome (97696869679).

The spelling of 25541455127 in words is "twenty-five billion, five hundred forty-one million, four hundred fifty-five thousand, one hundred twenty-seven".