53214432 has 24 divisors (see below), whose sum is σ = 139688136. Its totient is φ = 17738112.

The previous prime is 53214431. The next prime is 53214439. The reversal of 53214432 is 23441235.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53214431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277063 + ... + 277254.

It is an arithmetic number, because the mean of its divisors is an integer number (5820339).

Almost surely, 2^53214432 is an apocalyptic number.

It is an amenable number.

53214432 is an abundant number, since it is smaller than the sum of its proper divisors (86473704).

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

53214432 is a wasteful number, since it uses less digits than its factorization.

53214432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554330 (or 554322 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 53214432 is about 7294.8222733662. The cubic root of 53214432 is about 376.1344773244.

Adding to 53214432 its reverse (23441235), we get a palindrome (76655667).

The spelling of 53214432 in words is "fifty-three million, two hundred fourteen thousand, four hundred thirty-two".