15238555455 has 64 divisors (see below), whose sum is σ = 27014750208. Its totient is φ = 7300730880.

The previous prime is 15238555429. The next prime is 15238555511. The reversal of 15238555455 is 55455583251.

It is not a de Polignac number, because 15238555455 - 2⁶ = 15238555391 is a prime.

It is a super-2 number, since 2×15238555455² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 563862 + ... + 590268.

It is an arithmetic number, because the mean of its divisors is an integer number (422105472).

Almost surely, 2^15238555455 is an apocalyptic number.

15238555455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15238555455 is a deficient number, since it is larger than the sum of its proper divisors (11776194753).

15238555455 is a wasteful number, since it uses less digits than its factorization.

15238555455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26536.

The product of its digits is 3000000, while the sum is 48.

The spelling of 15238555455 in words is "fifteen billion, two hundred thirty-eight million, five hundred fifty-five thousand, four hundred fifty-five".