53212437 has 16 divisors (see below), whose sum is σ = 78946560. Its totient is φ = 35424000.

The previous prime is 53212433. The next prime is 53212447. The reversal of 53212437 is 73421235.

53212437 is a `hidden beast` number, since 532 + 124 + 3 + 7 = 666.

It is not a de Polignac number, because 53212437 - 2² = 53212433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 53212437.

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 in 15 ways as a sum of consecutive naturals, for example, 32437 + ... + 34037.

It is an arithmetic number, because the mean of its divisors is an integer number (4934160).

Almost surely, 2^53212437 is an apocalyptic number.

It is an amenable number.

53212437 is a deficient number, since it is larger than the sum of its proper divisors (25734123).

53212437 is a wasteful number, since it uses less digits than its factorization.

53212437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841 (or 2835 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 53212437 is about 7294.6855312618. The cubic root of 53212437 is about 376.1297768598.

The spelling of 53212437 in words is "fifty-three million, two hundred twelve thousand, four hundred thirty-seven".