253224433 has 32 divisors (see below), whose sum is σ = 329195520. Its totient is φ = 189000000.

The previous prime is 253224431. The next prime is 253224437. The reversal of 253224433 is 334422352.

It is not a de Polignac number, because 253224433 - 2¹ = 253224431 is a prime.

It is a super-2 number, since 2×253224433² = 128245226936342978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253224431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336808 + ... + 337558.

It is an arithmetic number, because the mean of its divisors is an integer number (10287360).

Almost surely, 2^253224433 is an apocalyptic number.

It is an amenable number.

253224433 is a deficient number, since it is larger than the sum of its proper divisors (75971087).

253224433 is a wasteful number, since it uses less digits than its factorization.

253224433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949.

The product of its digits is 17280, while the sum is 28.

The square root of 253224433 is about 15913.0271475920. The cubic root of 253224433 is about 632.6573178023.

Adding to 253224433 its reverse (334422352), we get a palindrome (587646785).

The spelling of 253224433 in words is "two hundred fifty-three million, two hundred twenty-four thousand, four hundred thirty-three".