252730053 has 6 divisors (see below), whose sum is σ = 365054534. Its totient is φ = 168486696.

The previous prime is 252730019. The next prime is 252730057. The reversal of 252730053 is 350037252.

It can be written as a sum of positive squares in only one way, i.e., 251952129 + 777924 = 15873^2 + 882^2 .

It is not a de Polignac number, because 252730053 - 2⁶ = 252729989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 252729999 and 252730026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252730057) 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 5 ways as a sum of consecutive naturals, for example, 14040550 + ... + 14040567.

Almost surely, 2^252730053 is an apocalyptic number.

It is an amenable number.

252730053 is a deficient number, since it is larger than the sum of its proper divisors (112324481).

252730053 is a wasteful number, since it uses less digits than its factorization.

252730053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28081123 (or 28081120 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 252730053 is about 15897.4857446075. The cubic root of 252730053 is about 632.2453290004.

The spelling of 252730053 in words is "two hundred fifty-two million, seven hundred thirty thousand, fifty-three".