2555123120019 has 12 divisors (see below), whose sum is σ = 3690756997200. Its totient is φ = 1703404520304.

The previous prime is 2555123119999. The next prime is 2555123120021. The reversal of 2555123120019 is 9100213215552.

2555123120019 is a `hidden beast` number, since 2 + 5 + 5 + 512 + 3 + 120 + 0 + 19 = 666.

It is not a de Polignac number, because 2555123120019 - 2⁷ = 2555123119891 is a prime.

It is a super-2 number, since 2×2555123120019² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2555123125019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 734122 + ... + 2376800.

It is an arithmetic number, because the mean of its divisors is an integer number (307563083100).

Almost surely, 2^{2555123120019} is an apocalyptic number.

2555123120019 is a deficient number, since it is larger than the sum of its proper divisors (1135633877181).

2555123120019 is a wasteful number, since it uses less digits than its factorization.

2555123120019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815514 (or 1815511 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 2555123120019 in words is "two trillion, five hundred fifty-five billion, one hundred twenty-three million, one hundred twenty thousand, nineteen".