1254199500555 has 64 divisors (see below), whose sum is σ = 2098433310720. Its totient is φ = 638903116800.

The previous prime is 1254199500539. The next prime is 1254199500583. The reversal of 1254199500555 is 5550059914521.

It is not a de Polignac number, because 1254199500555 - 2⁴ = 1254199500539 is a prime.

It is a super-2 number, since 2×1254199500555² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1254199500498 and 1254199500507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 152556345 + ... + 152564565.

It is an arithmetic number, because the mean of its divisors is an integer number (32788020480).

Almost surely, 2^{1254199500555} is an apocalyptic number.

1254199500555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1254199500555 is a deficient number, since it is larger than the sum of its proper divisors (844233810165).

1254199500555 is a wasteful number, since it uses less digits than its factorization.

1254199500555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12492.

The product of its (nonzero) digits is 2025000, while the sum is 51.

The spelling of 1254199500555 in words is "one trillion, two hundred fifty-four billion, one hundred ninety-nine million, five hundred thousand, five hundred fifty-five".