53215412 has 12 divisors (see below), whose sum is σ = 93209760. Its totient is φ = 26584056.

The previous prime is 53215411. The next prime is 53215433. The reversal of 53215412 is 21451235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53215411) 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, 248 + ... + 10319.

It is an arithmetic number, because the mean of its divisors is an integer number (7767480).

Almost surely, 2^53215412 is an apocalyptic number.

It is an amenable number.

53215412 is a deficient number, since it is larger than the sum of its proper divisors (39994348).

53215412 is a wasteful number, since it uses less digits than its factorization.

53215412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11830 (or 11828 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 53215412 is about 7294.8894439875. The cubic root of 53215412 is about 376.1367862815.

Adding to 53215412 its reverse (21451235), we get a palindrome (74666647).

The spelling of 53215412 in words is "fifty-three million, two hundred fifteen thousand, four hundred twelve".