53966538 has 12 divisors (see below), whose sum is σ = 116927538. Its totient is φ = 17988840.

The previous prime is 53966527. The next prime is 53966543. The reversal of 53966538 is 83566935.

53966538 is a `hidden beast` number, since 53 + 9 + 66 + 538 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51796809 + 2169729 = 7197^2 + 1473^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53966493 and 53966502.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1499053 + ... + 1499088.

Almost surely, 2^53966538 is an apocalyptic number.

53966538 is an abundant number, since it is smaller than the sum of its proper divisors (62961000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53966538 is a wasteful number, since it uses less digits than its factorization.

53966538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998149 (or 2998146 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 53966538 is about 7346.1920748099. The cubic root of 53966538 is about 377.8982257287.

The spelling of 53966538 in words is "fifty-three million, nine hundred sixty-six thousand, five hundred thirty-eight".