622041557 has 2 divisors, whose sum is σ = 622041558. Its totient is φ = 622041556.

The previous prime is 622041547. The next prime is 622041571. The reversal of 622041557 is 755140226.

622041557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 619462321 + 2579236 = 24889^2 + 1606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622041557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622041547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311020778 + 311020779.

It is an arithmetic number, because the mean of its divisors is an integer number (311020779).

Almost surely, 2^622041557 is an apocalyptic number.

It is an amenable number.

622041557 is a deficient number, since it is larger than the sum of its proper divisors (1).

622041557 is an equidigital number, since it uses as much as digits as its factorization.

622041557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 622041557 is about 24940.7609547103. The cubic root of 622041557 is about 853.6368081411.

The spelling of 622041557 in words is "six hundred twenty-two million, forty-one thousand, five hundred fifty-seven".