572217629 has 2 divisors, whose sum is σ = 572217630. Its totient is φ = 572217628.

The previous prime is 572217601. The next prime is 572217697. The reversal of 572217629 is 926712275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 571305604 + 912025 = 23902^2 + 955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-572217629 is a prime.

It is a Chen prime.

It is equal to p_29948225 and since 572217629 and 29948225 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (572217029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286108814 + 286108815.

It is an arithmetic number, because the mean of its divisors is an integer number (286108815).

Almost surely, 2^572217629 is an apocalyptic number.

It is an amenable number.

572217629 is a deficient number, since it is larger than the sum of its proper divisors (1).

572217629 is an equidigital number, since it uses as much as digits as its factorization.

572217629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The square root of 572217629 is about 23921.0708163326. The cubic root of 572217629 is about 830.2083132235.

The spelling of 572217629 in words is "five hundred seventy-two million, two hundred seventeen thousand, six hundred twenty-nine".