15553152243 has 24 divisors (see below), whose sum is σ = 22723683840. Its totient is φ = 10250288880.

The previous prime is 15553152229. The next prime is 15553152269. The reversal of 15553152243 is 34225135551.

15553152243 is a `hidden beast` number, since 1 + 55 + 531 + 52 + 24 + 3 = 666.

It is not a de Polignac number, because 15553152243 - 2⁵ = 15553152211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15553152198 and 15553152207.

It is not an unprimeable number, because it can be changed into a prime (15553152443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284998 + ... + 335156.

It is an arithmetic number, because the mean of its divisors is an integer number (946820160).

Almost surely, 2^15553152243 is an apocalyptic number.

15553152243 is a deficient number, since it is larger than the sum of its proper divisors (7170531597).

15553152243 is a wasteful number, since it uses less digits than its factorization.

15553152243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50559 (or 50556 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

Adding to 15553152243 its reverse (34225135551), we get a palindrome (49778287794).

The spelling of 15553152243 in words is "fifteen billion, five hundred fifty-three million, one hundred fifty-two thousand, two hundred forty-three".