53475493 has 4 divisors (see below), whose sum is σ = 54208108. Its totient is φ = 52742880.

The previous prime is 53475473. The next prime is 53475551. The reversal of 53475493 is 39457435.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23203489 + 30272004 = 4817^2 + 5502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53475493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53475473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366198 + ... + 366343.

It is an arithmetic number, because the mean of its divisors is an integer number (13552027).

Almost surely, 2^53475493 is an apocalyptic number.

It is an amenable number.

53475493 is a deficient number, since it is larger than the sum of its proper divisors (732615).

53475493 is an equidigital number, since it uses as much as digits as its factorization.

53475493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732614.

The product of its digits is 226800, while the sum is 40.

The square root of 53475493 is about 7312.6939632395. The cubic root of 53475493 is about 376.7485582598.

The spelling of 53475493 in words is "fifty-three million, four hundred seventy-five thousand, four hundred ninety-three".