53132921 has 8 divisors (see below), whose sum is σ = 56225664. Its totient is φ = 50105440.

The previous prime is 53132917. The next prime is 53132923. The reversal of 53132921 is 12923135.

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 53132921 - 2² = 53132917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53132923) 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, 14636 + ... + 17901.

It is an arithmetic number, because the mean of its divisors is an integer number (7028208).

Almost surely, 2^53132921 is an apocalyptic number.

It is an amenable number.

53132921 is a deficient number, since it is larger than the sum of its proper divisors (3092743).

53132921 is a wasteful number, since it uses less digits than its factorization.

53132921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32631.

The product of its digits is 1620, while the sum is 26.

The square root of 53132921 is about 7289.2332244208. The cubic root of 53132921 is about 375.9423316755.

The spelling of 53132921 in words is "fifty-three million, one hundred thirty-two thousand, nine hundred twenty-one".