572651381 has 2 divisors, whose sum is σ = 572651382. Its totient is φ = 572651380.

The previous prime is 572651353. The next prime is 572651383. The reversal of 572651381 is 183156275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 543123025 + 29528356 = 23305^2 + 5434^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-572651381 is a prime.

It is a super-2 number, since 2×572651381² = 655859208322414322, which contains 22 as substring.

Together with 572651383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (572651383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286325690 + 286325691.

It is an arithmetic number, because the mean of its divisors is an integer number (286325691).

Almost surely, 2^572651381 is an apocalyptic number.

It is an amenable number.

572651381 is a deficient number, since it is larger than the sum of its proper divisors (1).

572651381 is an equidigital number, since it uses as much as digits as its factorization.

572651381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 38.

The square root of 572651381 is about 23930.1354154129. The cubic root of 572651381 is about 830.4180315472.

The spelling of 572651381 in words is "five hundred seventy-two million, six hundred fifty-one thousand, three hundred eighty-one".