253525066 has 4 divisors (see below), whose sum is σ = 380287602. Its totient is φ = 126762532.

The previous prime is 253525061. The next prime is 253525079. The reversal of 253525066 is 660525352.

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

It can be written as a sum of positive squares in only one way, i.e., 168350625 + 85174441 = 12975^2 + 9229^2 .

It is not an unprimeable number, because it can be changed into a prime (253525061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63381265 + ... + 63381268.

Almost surely, 2^253525066 is an apocalyptic number.

253525066 is a deficient number, since it is larger than the sum of its proper divisors (126762536).

253525066 is a wasteful number, since it uses less digits than its factorization.

253525066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126762535.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 253525066 is about 15922.4704741444. The cubic root of 253525066 is about 632.9075865013.

The spelling of 253525066 in words is "two hundred fifty-three million, five hundred twenty-five thousand, sixty-six".