53402232 has 32 divisors (see below), whose sum is σ = 143776080. Its totient is φ = 16431360.

The previous prime is 53402231. The next prime is 53402233. The reversal of 53402232 is 23220435.

It is an interprime number because it is at equal distance from previous prime (53402231) and next prime (53402233).

It is a junction number, because it is equal to n+sod(n) for n = 53402199 and 53402208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53402231) 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, 85269 + ... + 85892.

Almost surely, 2^53402232 is an apocalyptic number.

53402232 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

53402232 is an abundant number, since it is smaller than the sum of its proper divisors (90373848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53402232 is a wasteful number, since it uses less digits than its factorization.

53402232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171183 (or 171179 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 53402232 is about 7307.6830801561. The cubic root of 53402232 is about 376.5764321229.

Adding to 53402232 its reverse (23220435), we get a palindrome (76622667).

The spelling of 53402232 in words is "fifty-three million, four hundred two thousand, two hundred thirty-two".