53421673 has 8 divisors (see below), whose sum is σ = 57753920. Its totient is φ = 49241520.

The previous prime is 53421653. The next prime is 53421677. The reversal of 53421673 is 37612435.

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 53421673 - 2²¹ = 51324521 is a prime.

It is a super-2 number, since 2×53421673² = 5707750292237858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53421677) 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, 37293 + ... + 38698.

It is an arithmetic number, because the mean of its divisors is an integer number (7219240).

Almost surely, 2^53421673 is an apocalyptic number.

It is an amenable number.

53421673 is a deficient number, since it is larger than the sum of its proper divisors (4332247).

53421673 is a wasteful number, since it uses less digits than its factorization.

53421673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76047.

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

The square root of 53421673 is about 7309.0131344799. The cubic root of 53421673 is about 376.6221239346.

The spelling of 53421673 in words is "fifty-three million, four hundred twenty-one thousand, six hundred seventy-three".