53686437 has 16 divisors (see below), whose sum is σ = 82962432. Its totient is φ = 30245040.

The previous prime is 53686427. The next prime is 53686441. The reversal of 53686437 is 73468635.

It is not a de Polignac number, because 53686437 - 2⁴ = 53686421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53686417) 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, 16513 + ... + 19494.

It is an arithmetic number, because the mean of its divisors is an integer number (5185152).

Almost surely, 2^53686437 is an apocalyptic number.

It is an amenable number.

53686437 is a deficient number, since it is larger than the sum of its proper divisors (29275995).

53686437 is a wasteful number, since it uses less digits than its factorization.

53686437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36088.

The product of its digits is 362880, while the sum is 42.

The square root of 53686437 is about 7327.1029063334. The cubic root of 53686437 is about 377.2432931584.

The spelling of 53686437 in words is "fifty-three million, six hundred eighty-six thousand, four hundred thirty-seven".