164253553 has 4 divisors (see below), whose sum is σ = 164304448. Its totient is φ = 164202660.

The previous prime is 164253539. The next prime is 164253559. The reversal of 164253553 is 355352461.

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: 355352461 = 23 ⋅15450107.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164253553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164253559) 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, 20253 + ... + 27178.

It is an arithmetic number, because the mean of its divisors is an integer number (41076112).

Almost surely, 2^164253553 is an apocalyptic number.

It is an amenable number.

164253553 is a deficient number, since it is larger than the sum of its proper divisors (50895).

164253553 is an equidigital number, since it uses as much as digits as its factorization.

164253553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50894.

The product of its digits is 54000, while the sum is 34.

The square root of 164253553 is about 12816.1442329587. The cubic root of 164253553 is about 547.6523104389.

The spelling of 164253553 in words is "one hundred sixty-four million, two hundred fifty-three thousand, five hundred fifty-three".