53643474 has 12 divisors (see below), whose sum is σ = 116227566. Its totient is φ = 17881152.

The previous prime is 53643413. The next prime is 53643493. The reversal of 53643474 is 47434635.

It is a happy number.

53643474 is a `hidden beast` number, since 5 + 3 + 643 + 4 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53187849 + 455625 = 7293^2 + 675^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1490079 + ... + 1490114.

Almost surely, 2^53643474 is an apocalyptic number.

53643474 is an abundant number, since it is smaller than the sum of its proper divisors (62584092).

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

53643474 is a wasteful number, since it uses less digits than its factorization.

53643474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980201 (or 2980198 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 53643474 is about 7324.1705332413. The cubic root of 53643474 is about 377.1426356502.

The spelling of 53643474 in words is "fifty-three million, six hundred forty-three thousand, four hundred seventy-four".