53400333 has 16 divisors (see below), whose sum is σ = 81489920. Its totient is φ = 30470256.

The previous prime is 53400329. The next prime is 53400341. The reversal of 53400333 is 33300435.

It is not a de Polignac number, because 53400333 - 2² = 53400329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53400323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17916 + ... + 20682.

It is an arithmetic number, because the mean of its divisors is an integer number (5093120).

Almost surely, 2^53400333 is an apocalyptic number.

It is an amenable number.

53400333 is a deficient number, since it is larger than the sum of its proper divisors (28089587).

53400333 is a wasteful number, since it uses less digits than its factorization.

53400333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696.

The product of its (nonzero) digits is 1620, while the sum is 21.

The square root of 53400333 is about 7307.5531472580. The cubic root of 53400333 is about 376.5719683449.

Adding to 53400333 its reverse (33300435), we get a palindrome (86700768).

The spelling of 53400333 in words is "fifty-three million, four hundred thousand, three hundred thirty-three".