53671637 has 4 divisors (see below), whose sum is σ = 56496480. Its totient is φ = 50846796.

The previous prime is 53671619. The next prime is 53671661. The reversal of 53671637 is 73617635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53671637 - 2⁸ = 53671381 is a prime.

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 53671637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53671237) 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, 1412393 + ... + 1412430.

It is an arithmetic number, because the mean of its divisors is an integer number (14124120).

Almost surely, 2^53671637 is an apocalyptic number.

It is an amenable number.

53671637 is a deficient number, since it is larger than the sum of its proper divisors (2824843).

53671637 is a wasteful number, since it uses less digits than its factorization.

53671637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824842.

The product of its digits is 79380, while the sum is 38.

The square root of 53671637 is about 7326.0928877540. The cubic root of 53671637 is about 377.2086244775.

The spelling of 53671637 in words is "fifty-three million, six hundred seventy-one thousand, six hundred thirty-seven".