252440253 has 16 divisors (see below), whose sum is σ = 402754240. Its totient is φ = 155347632.

The previous prime is 252440231. The next prime is 252440261. The reversal of 252440253 is 352044252.

It is a happy number.

252440253 is a `hidden beast` number, since 252 + 4 + 402 + 5 + 3 = 666.

It is not a de Polignac number, because 252440253 - 2¹⁷ = 252309181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252440053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359251 + ... + 359952.

It is an arithmetic number, because the mean of its divisors is an integer number (25172140).

Almost surely, 2^252440253 is an apocalyptic number.

It is an amenable number.

252440253 is a deficient number, since it is larger than the sum of its proper divisors (150313987).

252440253 is a wasteful number, since it uses less digits than its factorization.

252440253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719225 (or 719219 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 252440253 is about 15888.3684813766. The cubic root of 252440253 is about 632.0035759625.

The spelling of 252440253 in words is "two hundred fifty-two million, four hundred forty thousand, two hundred fifty-three".