252006133 has 4 divisors (see below), whose sum is σ = 252350668. Its totient is φ = 251661600.

The previous prime is 252006121. The next prime is 252006163. The reversal of 252006133 is 331600252.

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 113167044 + 138839089 = 10638^2 + 11783^2 .

It is a cyclic number.

It is not a de Polignac number, because 252006133 - 2¹⁷ = 251875061 is a prime.

It is a super-2 number, since 2×252006133² = 127014182139227378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252006103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171168 + ... + 172633.

It is an arithmetic number, because the mean of its divisors is an integer number (63087667).

Almost surely, 2^252006133 is an apocalyptic number.

It is an amenable number.

252006133 is a deficient number, since it is larger than the sum of its proper divisors (344535).

252006133 is an equidigital number, since it uses as much as digits as its factorization.

252006133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344534.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 252006133 is about 15874.7010365550. The cubic root of 252006133 is about 631.6410838290.

Adding to 252006133 its reverse (331600252), we get a palindrome (583606385).

The spelling of 252006133 in words is "two hundred fifty-two million, six thousand, one hundred thirty-three".