53400033 has 8 divisors (see below), whose sum is σ = 79111200. Its totient is φ = 35600004.

The previous prime is 53400001. The next prime is 53400059. The reversal of 53400033 is 33000435.

It is a happy number.

It is not a de Polignac number, because 53400033 - 2⁵ = 53400001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53399979 and 53400015.

It is not an unprimeable number, because it can be changed into a prime (53400233) 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, 988863 + ... + 988916.

It is an arithmetic number, because the mean of its divisors is an integer number (9888900).

Almost surely, 2^53400033 is an apocalyptic number.

It is an amenable number.

53400033 is a deficient number, since it is larger than the sum of its proper divisors (25711167).

53400033 is a wasteful number, since it uses less digits than its factorization.

53400033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977788 (or 1977782 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 53400033 is about 7307.5326205225. The cubic root of 53400033 is about 376.5712631570.

Adding to 53400033 its reverse (33000435), we get a palindrome (86400468).

The spelling of 53400033 in words is "fifty-three million, four hundred thousand, thirty-three".