4642525081 has 2 divisors, whose sum is σ = 4642525082. Its totient is φ = 4642525080.

The previous prime is 4642525021. The next prime is 4642525093. The reversal of 4642525081 is 1805252464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4632027481 + 10497600 = 68059^2 + 3240^2 .

It is a cyclic number.

It is not a de Polignac number, because 4642525081 - 2¹¹ = 4642523033 is a prime.

It is a super-2 number, since 2×4642525081² = 43106078255428113122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4642525081.

It is not a weakly prime, because it can be changed into another prime (4642525021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2321262540 + 2321262541.

It is an arithmetic number, because the mean of its divisors is an integer number (2321262541).

Almost surely, 2^4642525081 is an apocalyptic number.

It is an amenable number.

4642525081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4642525081 is an equidigital number, since it uses as much as digits as its factorization.

4642525081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 4642525081 is about 68136.0776754870. The cubic root of 4642525081 is about 1668.2126862817.

The spelling of 4642525081 in words is "four billion, six hundred forty-two million, five hundred twenty-five thousand, eighty-one".