162550993 has 4 divisors (see below), whose sum is σ = 177328368. Its totient is φ = 147773620.

The previous prime is 162550987. The next prime is 162551009. The reversal of 162550993 is 399055261.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-162550993 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162550933) 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, 7388671 + ... + 7388692.

It is an arithmetic number, because the mean of its divisors is an integer number (44332092).

Almost surely, 2^162550993 is an apocalyptic number.

It is an amenable number.

162550993 is a deficient number, since it is larger than the sum of its proper divisors (14777375).

162550993 is a wasteful number, since it uses less digits than its factorization.

162550993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14777374.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 162550993 is about 12749.5487371122. The cubic root of 162550993 is about 545.7535159684.

It can be divided in two parts, 162 and 550993, that added together give a palindrome (551155).

The spelling of 162550993 in words is "one hundred sixty-two million, five hundred fifty thousand, nine hundred ninety-three".