253039553 has 4 divisors (see below), whose sum is σ = 272504148. Its totient is φ = 233574960.

The previous prime is 253039541. The next prime is 253039561. The reversal of 253039553 is 355930352.

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 108847489 + 144192064 = 10433^2 + 12008^2 .

It is a cyclic number.

It is not a de Polignac number, because 253039553 - 2¹⁸ = 252777409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253059553) 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, 9732278 + ... + 9732303.

It is an arithmetic number, because the mean of its divisors is an integer number (68126037).

Almost surely, 2^253039553 is an apocalyptic number.

It is an amenable number.

253039553 is a deficient number, since it is larger than the sum of its proper divisors (19464595).

253039553 is a wasteful number, since it uses less digits than its factorization.

253039553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19464594.

The product of its (nonzero) digits is 60750, while the sum is 35.

The square root of 253039553 is about 15907.2170098984. The cubic root of 253039553 is about 632.5033119128.

The spelling of 253039553 in words is "two hundred fifty-three million, thirty-nine thousand, five hundred fifty-three".