53212436 has 6 divisors (see below), whose sum is σ = 93121770. Its totient is φ = 26606216.

The previous prime is 53212433. The next prime is 53212447. The reversal of 53212436 is 63421235.

It can be written as a sum of positive squares in only one way, i.e., 53202436 + 10000 = 7294^2 + 100^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53212433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6651551 + ... + 6651558.

It is an arithmetic number, because the mean of its divisors is an integer number (15520295).

Almost surely, 2^53212436 is an apocalyptic number.

It is an amenable number.

53212436 is a deficient number, since it is larger than the sum of its proper divisors (39909334).

53212436 is a wasteful number, since it uses less digits than its factorization.

53212436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13303113 (or 13303111 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 53212436 is about 7294.6854627187. The cubic root of 53212436 is about 376.1297745037.

The spelling of 53212436 in words is "fifty-three million, two hundred twelve thousand, four hundred thirty-six".