15552145403 has 4 divisors (see below), whose sum is σ = 15554651568. Its totient is φ = 15549639240.

The previous prime is 15552145387. The next prime is 15552145429. The reversal of 15552145403 is 30454125551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15552145403 - 2⁴ = 15552145387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15552145493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243751 + ... + 1256192.

It is an arithmetic number, because the mean of its divisors is an integer number (3888662892).

Almost surely, 2^15552145403 is an apocalyptic number.

15552145403 is a deficient number, since it is larger than the sum of its proper divisors (2506165).

15552145403 is an equidigital number, since it uses as much as digits as its factorization.

15552145403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506164.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 15552145403 in words is "fifteen billion, five hundred fifty-two million, one hundred forty-five thousand, four hundred three".