572752781 has 2 divisors, whose sum is σ = 572752782. Its totient is φ = 572752780.

The previous prime is 572752771. The next prime is 572752787. The reversal of 572752781 is 187257275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 496888681 + 75864100 = 22291^2 + 8710^2 .

It is a cyclic number.

It is not a de Polignac number, because 572752781 - 2⁶ = 572752717 is a prime.

It is a super-2 number, since 2×572752781² = 656091496286467922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (572752787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286376390 + 286376391.

It is an arithmetic number, because the mean of its divisors is an integer number (286376391).

Almost surely, 2^572752781 is an apocalyptic number.

It is an amenable number.

572752781 is a deficient number, since it is larger than the sum of its proper divisors (1).

572752781 is an equidigital number, since it uses as much as digits as its factorization.

572752781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 274400, while the sum is 44.

The square root of 572752781 is about 23932.2539891252. The cubic root of 572752781 is about 830.4670429944.

The spelling of 572752781 in words is "five hundred seventy-two million, seven hundred fifty-two thousand, seven hundred eighty-one".