53736437 has 4 divisors (see below), whose sum is σ = 53768076. Its totient is φ = 53704800.

The previous prime is 53736413. The next prime is 53736443. The reversal of 53736437 is 73463735.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4301476 + 49434961 = 2074^2 + 7031^2 .

It is a cyclic number.

It is not a de Polignac number, because 53736437 - 2¹⁴ = 53720053 is a prime.

It is a super-2 number, since 2×53736437² = 5775209322909938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53736437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53736407) 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, 13118 + ... + 16719.

It is an arithmetic number, because the mean of its divisors is an integer number (13442019).

Almost surely, 2^53736437 is an apocalyptic number.

It is an amenable number.

53736437 is a deficient number, since it is larger than the sum of its proper divisors (31639).

53736437 is a wasteful number, since it uses less digits than its factorization.

53736437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31638.

The product of its digits is 158760, while the sum is 38.

The square root of 53736437 is about 7330.5141020259. The cubic root of 53736437 is about 377.3603699788.

The spelling of 53736437 in words is "fifty-three million, seven hundred thirty-six thousand, four hundred thirty-seven".