53433261 has 24 divisors (see below), whose sum is σ = 93397824. Its totient is φ = 28736640.

The previous prime is 53433241. The next prime is 53433269. The reversal of 53433261 is 16233435.

It is a happy number.

It is not a de Polignac number, because 53433261 - 2¹⁵ = 53400493 is a prime.

It is a super-2 number, since 2×53433261² = 5710226762188242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53433269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23875 + ... + 26016.

It is an arithmetic number, because the mean of its divisors is an integer number (3891576).

Almost surely, 2^53433261 is an apocalyptic number.

53433261 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

53433261 is a deficient number, since it is larger than the sum of its proper divisors (39964563).

53433261 is a wasteful number, since it uses less digits than its factorization.

53433261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49921 (or 49918 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 53433261 is about 7309.8058113742. The cubic root of 53433261 is about 376.6493537173.

Adding to 53433261 its reverse (16233435), we get a palindrome (69666696).

The spelling of 53433261 in words is "fifty-three million, four hundred thirty-three thousand, two hundred sixty-one".