25130555554 has 8 divisors (see below), whose sum is σ = 40595512860. Its totient is φ = 11598717936.

The previous prime is 25130555519. The next prime is 25130555557. The reversal of 25130555554 is 45555503152.

It can be written as a sum of positive squares in 2 ways, for example, as 24860774929 + 269780625 = 157673^2 + 16425^2 .

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

It is not an unprimeable number, because it can be changed into a prime (25130555557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483279889 + ... + 483279940.

Almost surely, 2^25130555554 is an apocalyptic number.

25130555554 is a deficient number, since it is larger than the sum of its proper divisors (15464957306).

25130555554 is a wasteful number, since it uses less digits than its factorization.

25130555554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966559844.

The product of its (nonzero) digits is 375000, while the sum is 40.

The spelling of 25130555554 in words is "twenty-five billion, one hundred thirty million, five hundred fifty-five thousand, five hundred fifty-four".