253040530 has 16 divisors (see below), whose sum is σ = 455903640. Its totient is φ = 101120512.

The previous prime is 253040483. The next prime is 253040539. The reversal of 253040530 is 35040352.

253040530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 209757289 + 43283241 = 14483^2 + 6579^2 .

It is not an unprimeable number, because it can be changed into a prime (253040539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319 + ... + 22498.

Almost surely, 2^253040530 is an apocalyptic number.

253040530 is a deficient number, since it is larger than the sum of its proper divisors (202863110).

253040530 is a wasteful number, since it uses less digits than its factorization.

253040530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23933.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 253040530 is about 15907.2477192002. The cubic root of 253040530 is about 632.5041259554.

Adding to 253040530 its reverse (35040352), we get a palindrome (288080882).

The spelling of 253040530 in words is "two hundred fifty-three million, forty thousand, five hundred thirty".