25505544320130 has 64 divisors (see below), whose sum is σ = 69959642353920. Its totient is φ = 5829707207424.

The previous prime is 25505544320111. The next prime is 25505544320189. The reversal of 25505544320130 is 3102344550552.

It is a super-2 number, since 2×25505544320130² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8118976 + ... + 10813364.

It is an arithmetic number, because the mean of its divisors is an integer number (1093119411780).

Almost surely, 2^{25505544320130} is an apocalyptic number.

25505544320130 is an abundant number, since it is smaller than the sum of its proper divisors (44454098033790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25505544320130 is a wasteful number, since it uses less digits than its factorization.

25505544320130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739483.

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 25505544320130 its reverse (3102344550552), we get a palindrome (28607888870682).

The spelling of 25505544320130 in words is "twenty-five trillion, five hundred five billion, five hundred forty-four million, three hundred twenty thousand, one hundred thirty".