15355211055 has 16 divisors (see below), whose sum is σ = 24671139840. Its totient is φ = 8155178528.

The previous prime is 15355211051. The next prime is 15355211077. The reversal of 15355211055 is 55011255351.

It is a cyclic number.

It is not a de Polignac number, because 15355211055 - 2² = 15355211051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15355211051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2138007 + ... + 2145176.

It is an arithmetic number, because the mean of its divisors is an integer number (1541946240).

Almost surely, 2^15355211055 is an apocalyptic number.

15355211055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15355211055 is a deficient number, since it is larger than the sum of its proper divisors (9315928785).

15355211055 is a wasteful number, since it uses less digits than its factorization.

15355211055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4283430.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 15355211055 in words is "fifteen billion, three hundred fifty-five million, two hundred eleven thousand, fifty-five".