15255205545 has 32 divisors (see below), whose sum is σ = 26076487680. Its totient is φ = 7592840640.

The previous prime is 15255205543. The next prime is 15255205571. The reversal of 15255205545 is 54550255251.

It is not a de Polignac number, because 15255205545 - 2¹ = 15255205543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15255205543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 380361 + ... + 418550.

It is an arithmetic number, because the mean of its divisors is an integer number (814890240).

Almost surely, 2^15255205545 is an apocalyptic number.

15255205545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15255205545 is a deficient number, since it is larger than the sum of its proper divisors (10821282135).

15255205545 is a wasteful number, since it uses less digits than its factorization.

15255205545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799005.

The product of its (nonzero) digits is 250000, while the sum is 39.

The spelling of 15255205545 in words is "fifteen billion, two hundred fifty-five million, two hundred five thousand, five hundred forty-five".