53432661 has 8 divisors (see below), whose sum is σ = 72102240. Its totient is φ = 35192432.

The previous prime is 53432647. The next prime is 53432669. The reversal of 53432661 is 16623435.

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

It is a cyclic number.

It is not a de Polignac number, because 53432661 - 2¹⁵ = 53399893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53432669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107046 + ... + 107543.

It is an arithmetic number, because the mean of its divisors is an integer number (9012780).

Almost surely, 2^53432661 is an apocalyptic number.

It is an amenable number.

53432661 is a deficient number, since it is larger than the sum of its proper divisors (18669579).

53432661 is a wasteful number, since it uses less digits than its factorization.

53432661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214675.

The product of its digits is 12960, while the sum is 30.

The square root of 53432661 is about 7309.7647704971. The cubic root of 53432661 is about 376.6479439184.

The spelling of 53432661 in words is "fifty-three million, four hundred thirty-two thousand, six hundred sixty-one".