16550523253 has 4 divisors (see below), whose sum is σ = 18055116288. Its totient is φ = 15045930220.

The previous prime is 16550523251. The next prime is 16550523277. The reversal of 16550523253 is 35232505561.

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.

It is a cyclic number.

It is not a de Polignac number, because 16550523253 - 2¹ = 16550523251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16550523251) 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, 752296501 + ... + 752296522.

It is an arithmetic number, because the mean of its divisors is an integer number (4513779072).

Almost surely, 2^16550523253 is an apocalyptic number.

It is an amenable number.

16550523253 is a deficient number, since it is larger than the sum of its proper divisors (1504593035).

16550523253 is a wasteful number, since it uses less digits than its factorization.

16550523253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504593034.

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 16550523253 in words is "sixteen billion, five hundred fifty million, five hundred twenty-three thousand, two hundred fifty-three".