162553493 has 4 divisors (see below), whose sum is σ = 171108960. Its totient is φ = 153998028.

The previous prime is 162553477. The next prime is 162553499. The reversal of 162553493 is 394355261.

162553493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 162553493 - 2⁴ = 162553477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162553499) 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, 4277705 + ... + 4277742.

It is an arithmetic number, because the mean of its divisors is an integer number (42777240).

Almost surely, 2^162553493 is an apocalyptic number.

It is an amenable number.

162553493 is a deficient number, since it is larger than the sum of its proper divisors (8555467).

162553493 is an equidigital number, since it uses as much as digits as its factorization.

162553493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8555466.

The product of its digits is 97200, while the sum is 38.

The square root of 162553493 is about 12749.6467794210. The cubic root of 162553493 is about 545.7563138121.

The spelling of 162553493 in words is "one hundred sixty-two million, five hundred fifty-three thousand, four hundred ninety-three".