25555454125215 has 32 divisors (see below), whose sum is σ = 46730206548480. Its totient is φ = 11682434991744.

The previous prime is 25555454125193. The next prime is 25555454125237. The reversal of 25555454125215 is 51252145455552.

It is an interprime number because it is at equal distance from previous prime (25555454125193) and next prime (25555454125237).

It is not a de Polignac number, because 25555454125215 - 2⁷ = 25555454125087 is a prime.

It is a congruent 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, 26081757 + ... + 27043833.

It is an arithmetic number, because the mean of its divisors is an integer number (1460318954640).

Almost surely, 2^{25555454125215} is an apocalyptic number.

25555454125215 is a deficient number, since it is larger than the sum of its proper divisors (21174752423265).

25555454125215 is a wasteful number, since it uses less digits than its factorization.

25555454125215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215071.

The product of its digits is 10000000, while the sum is 51.

The spelling of 25555454125215 in words is "twenty-five trillion, five hundred fifty-five billion, four hundred fifty-four million, one hundred twenty-five thousand, two hundred fifteen".