15040450553 has 4 divisors (see below), whose sum is σ = 15041485200. Its totient is φ = 15039415908.

The previous prime is 15040450549. The next prime is 15040450571. The reversal of 15040450553 is 35505404051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35505404051 = 13 ⋅2731184927.

It is a cyclic number.

It is not a de Polignac number, because 15040450553 - 2² = 15040450549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15040420553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495203 + ... + 524696.

It is an arithmetic number, because the mean of its divisors is an integer number (3760371300).

Almost surely, 2^15040450553 is an apocalyptic number.

It is an amenable number.

15040450553 is a deficient number, since it is larger than the sum of its proper divisors (1034647).

15040450553 is a wasteful number, since it uses less digits than its factorization.

15040450553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034646.

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 15040450553 in words is "fifteen billion, forty million, four hundred fifty thousand, five hundred fifty-three".