622251601 has 4 divisors (see below), whose sum is σ = 622626100. Its totient is φ = 621877104.

The previous prime is 622251571. The next prime is 622251631. The reversal of 622251601 is 106152226.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (622251571) and next prime (622251631).

It can be written as a sum of positive squares in 2 ways, for example, as 518700625 + 103550976 = 22775^2 + 10176^2 .

It is a cyclic number.

It is not a de Polignac number, because 622251601 - 2⁵ = 622251569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622251631) 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, 184746 + ... + 188083.

It is an arithmetic number, because the mean of its divisors is an integer number (155656525).

Almost surely, 2^622251601 is an apocalyptic number.

It is an amenable number.

622251601 is a deficient number, since it is larger than the sum of its proper divisors (374499).

622251601 is a wasteful number, since it uses less digits than its factorization.

622251601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374498.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 622251601 is about 24944.9714571895. The cubic root of 622251601 is about 853.7328794888.

The spelling of 622251601 in words is "six hundred twenty-two million, two hundred fifty-one thousand, six hundred one".