252066061 has 4 divisors (see below), whose sum is σ = 271455772. Its totient is φ = 232676352.

The previous prime is 252065977. The next prime is 252066071. The reversal of 252066061 is 160660252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55785961 + 196280100 = 7469^2 + 14010^2 .

It is a cyclic number.

It is not a de Polignac number, because 252066061 - 2¹⁵ = 252033293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252066071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9694836 + ... + 9694861.

It is an arithmetic number, because the mean of its divisors is an integer number (67863943).

Almost surely, 2^252066061 is an apocalyptic number.

It is an amenable number.

252066061 is a deficient number, since it is larger than the sum of its proper divisors (19389711).

252066061 is a wasteful number, since it uses less digits than its factorization.

252066061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19389710.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 252066061 is about 15876.5884559624. The cubic root of 252066061 is about 631.6911487306.

The spelling of 252066061 in words is "two hundred fifty-two million, sixty-six thousand, sixty-one".