4564252981 has 2 divisors, whose sum is σ = 4564252982. Its totient is φ = 4564252980.

The previous prime is 4564252951. The next prime is 4564253003. The reversal of 4564252981 is 1892524654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3827401956 + 736851025 = 61866^2 + 27145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4564252981 is a prime.

It is a super-2 number, since 2×4564252981² = 41664810549134772722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4564252951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2282126490 + 2282126491.

It is an arithmetic number, because the mean of its divisors is an integer number (2282126491).

Almost surely, 2^4564252981 is an apocalyptic number.

It is an amenable number.

4564252981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4564252981 is an equidigital number, since it uses as much as digits as its factorization.

4564252981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 46.

The square root of 4564252981 is about 67559.2553318936. The cubic root of 4564252981 is about 1658.7842480881.

The spelling of 4564252981 in words is "four billion, five hundred sixty-four million, two hundred fifty-two thousand, nine hundred eighty-one".