53066642 has 4 divisors (see below), whose sum is σ = 79599966. Its totient is φ = 26533320.

The previous prime is 53066633. The next prime is 53066719. The reversal of 53066642 is 24666035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24666035 = 5 ⋅4933207.

It can be written as a sum of positive squares in only one way, i.e., 52258441 + 808201 = 7229^2 + 899^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53066599 and 53066608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13266659 + ... + 13266662.

Almost surely, 2^53066642 is an apocalyptic number.

53066642 is a deficient number, since it is larger than the sum of its proper divisors (26533324).

53066642 is a wasteful number, since it uses less digits than its factorization.

53066642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26533323.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 53066642 is about 7284.6854427628. The cubic root of 53066642 is about 375.7859474653.

The spelling of 53066642 in words is "fifty-three million, sixty-six thousand, six hundred forty-two".