25505504325755 has 16 divisors (see below), whose sum is σ = 31937494247424. Its totient is φ = 19517153372640.

The previous prime is 25505504325619. The next prime is 25505504325757. The reversal of 25505504325755 is 55752340550552.

It is not a de Polignac number, because 25505504325755 - 2²² = 25505500131451 is a prime.

It is a super-2 number, since 2×25505504325755² (a number of 28 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 = 25505504325697 and 25505504325706.

It is not an unprimeable number, because it can be changed into a prime (25505504325757) 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, 27293090 + ... + 28212120.

It is an arithmetic number, because the mean of its divisors is an integer number (1996093390464).

Almost surely, 2^{25505504325755} is an apocalyptic number.

25505504325755 is a deficient number, since it is larger than the sum of its proper divisors (6431989921669).

25505504325755 is a wasteful number, since it uses less digits than its factorization.

25505504325755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160386.

The product of its (nonzero) digits is 26250000, while the sum is 53.

The spelling of 25505504325755 in words is "twenty-five trillion, five hundred five billion, five hundred four million, three hundred twenty-five thousand, seven hundred fifty-five".