15042405555 has 48 divisors (see below), whose sum is σ = 26872285440. Its totient is φ = 7779530304.

The previous prime is 15042405551. The next prime is 15042405617. The reversal of 15042405555 is 55550424051.

It is not a de Polignac number, because 15042405555 - 2² = 15042405551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15042405551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 241002 + ... + 296928.

It is an arithmetic number, because the mean of its divisors is an integer number (559839280).

Almost surely, 2^15042405555 is an apocalyptic number.

15042405555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15042405555 is a deficient number, since it is larger than the sum of its proper divisors (11829879885).

15042405555 is a wasteful number, since it uses less digits than its factorization.

15042405555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56120 (or 56117 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 15042405555 in words is "fifteen billion, forty-two million, four hundred five thousand, five hundred fifty-five".