53660642 has 8 divisors (see below), whose sum is σ = 91989696. Its totient is φ = 22997412.

The previous prime is 53660639. The next prime is 53660657. The reversal of 53660642 is 24606635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 53660599 and 53660608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1916438 + ... + 1916465.

It is an arithmetic number, because the mean of its divisors is an integer number (11498712).

Almost surely, 2^53660642 is an apocalyptic number.

53660642 is a deficient number, since it is larger than the sum of its proper divisors (38329054).

53660642 is a wasteful number, since it uses less digits than its factorization.

53660642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832912.

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

The square root of 53660642 is about 7325.3424493330. The cubic root of 53660642 is about 377.1828648007.

The spelling of 53660642 in words is "fifty-three million, six hundred sixty thousand, six hundred forty-two".