15535222455 has 24 divisors (see below), whose sum is σ = 26404510032. Its totient is φ = 7798070272.

The previous prime is 15535222427. The next prime is 15535222463. The reversal of 15535222455 is 55422253551.

It is not a de Polignac number, because 15535222455 - 2¹³ = 15535214263 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1787502 + ... + 1796171.

It is an arithmetic number, because the mean of its divisors is an integer number (1100187918).

Almost surely, 2^15535222455 is an apocalyptic number.

15535222455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15535222455 is a deficient number, since it is larger than the sum of its proper divisors (10869287577).

15535222455 is a wasteful number, since it uses less digits than its factorization.

15535222455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583715 (or 3583698 counting only the distinct ones).

The product of its digits is 300000, while the sum is 39.

The spelling of 15535222455 in words is "fifteen billion, five hundred thirty-five million, two hundred twenty-two thousand, four hundred fifty-five".