15552009553 has 8 divisors (see below), whose sum is σ = 15573054816. Its totient is φ = 15530980800.

The previous prime is 15552009533. The next prime is 15552009607. The reversal of 15552009553 is 35590025551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15552009553 - 2¹⁷ = 15551878481 is a prime.

It is a super-2 number, since 2×15552009553² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15552009503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4133193 + ... + 4136953.

It is an arithmetic number, because the mean of its divisors is an integer number (1946631852).

Almost surely, 2^15552009553 is an apocalyptic number.

It is an amenable number.

15552009553 is a deficient number, since it is larger than the sum of its proper divisors (21045263).

15552009553 is a wasteful number, since it uses less digits than its factorization.

15552009553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255.

The product of its (nonzero) digits is 168750, while the sum is 40.

The spelling of 15552009553 in words is "fifteen billion, five hundred fifty-two million, nine thousand, five hundred fifty-three".