15620240055 has 16 divisors (see below), whose sum is σ = 28562724864. Its totient is φ = 7140681120.

The previous prime is 15620240039. The next prime is 15620240059. The reversal of 15620240055 is 55004202651.

It is not a de Polignac number, because 15620240055 - 2⁴ = 15620240039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15620240059) 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 15 ways as a sum of consecutive naturals, for example, 74381991 + ... + 74382200.

It is an arithmetic number, because the mean of its divisors is an integer number (1785170304).

Almost surely, 2^15620240055 is an apocalyptic number.

15620240055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15620240055 is a deficient number, since it is larger than the sum of its proper divisors (12942484809).

15620240055 is a wasteful number, since it uses less digits than its factorization.

15620240055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148764206.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 15620240055 in words is "fifteen billion, six hundred twenty million, two hundred forty thousand, fifty-five".