1623645053 has 2 divisors, whose sum is σ = 1623645054. Its totient is φ = 1623645052.

The previous prime is 1623645043. The next prime is 1623645077. The reversal of 1623645053 is 3505463261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1429822969 + 193822084 = 37813^2 + 13922^2 .

It is an emirp because it is prime and its reverse (3505463261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1623645053 - 2⁸ = 1623644797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1623645043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811822526 + 811822527.

It is an arithmetic number, because the mean of its divisors is an integer number (811822527).

Almost surely, 2^1623645053 is an apocalyptic number.

It is an amenable number.

1623645053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623645053 is an equidigital number, since it uses as much as digits as its factorization.

1623645053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 1623645053 is about 40294.4791876009. The cubic root of 1623645053 is about 1175.3404905493.

The spelling of 1623645053 in words is "one billion, six hundred twenty-three million, six hundred forty-five thousand, fifty-three".