622970553 has 4 divisors (see below), whose sum is σ = 830627408. Its totient is φ = 415313700.

The previous prime is 622970549. The next prime is 622970561. The reversal of 622970553 is 355079226.

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 622970553 - 2² = 622970549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (622970573) 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, 103828423 + ... + 103828428.

It is an arithmetic number, because the mean of its divisors is an integer number (207656852).

Almost surely, 2^622970553 is an apocalyptic number.

It is an amenable number.

622970553 is a deficient number, since it is larger than the sum of its proper divisors (207656855).

622970553 is a wasteful number, since it uses less digits than its factorization.

622970553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207656854.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 622970553 is about 24959.3780571552. The cubic root of 622970553 is about 854.0615550700.

The spelling of 622970553 in words is "six hundred twenty-two million, nine hundred seventy thousand, five hundred fifty-three".