622142553 has 4 divisors (see below), whose sum is σ = 829523408. Its totient is φ = 414761700.

The previous prime is 622142509. The next prime is 622142611. The reversal of 622142553 is 355241226.

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 not a de Polignac number, because 622142553 - 2⁹ = 622142041 is a prime.

It is a super-2 number, since 2×622142553² = 774122712506715618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 622142553.

It is not an unprimeable number, because it can be changed into a prime (622142153) 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, 103690423 + ... + 103690428.

It is an arithmetic number, because the mean of its divisors is an integer number (207380852).

Almost surely, 2^622142553 is an apocalyptic number.

It is an amenable number.

622142553 is a deficient number, since it is larger than the sum of its proper divisors (207380855).

622142553 is a wasteful number, since it uses less digits than its factorization.

622142553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207380854.

The product of its digits is 14400, while the sum is 30.

The square root of 622142553 is about 24942.7855902263. The cubic root of 622142553 is about 853.6830050747.

Adding to 622142553 its reverse (355241226), we get a palindrome (977383779).

The spelling of 622142553 in words is "six hundred twenty-two million, one hundred forty-two thousand, five hundred fifty-three".