53621473 has 8 divisors (see below), whose sum is σ = 56353088. Its totient is φ = 50957424.

The previous prime is 53621471. The next prime is 53621489. The reversal of 53621473 is 37412635.

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 53621473 - 2¹ = 53621471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53621471) 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, 15261 + ... + 18442.

It is an arithmetic number, because the mean of its divisors is an integer number (7044136).

Almost surely, 2^53621473 is an apocalyptic number.

It is an amenable number.

53621473 is a deficient number, since it is larger than the sum of its proper divisors (2731615).

53621473 is a wasteful number, since it uses less digits than its factorization.

53621473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33783.

The product of its digits is 15120, while the sum is 31.

The square root of 53621473 is about 7322.6684343892. The cubic root of 53621473 is about 377.0910689567.

The spelling of 53621473 in words is "fifty-three million, six hundred twenty-one thousand, four hundred seventy-three".