53147405 has 8 divisors (see below), whose sum is σ = 64675584. Its totient is φ = 41918800.

The previous prime is 53147399. The next prime is 53147407. The reversal of 53147405 is 50474135.

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

It is not a de Polignac number, because 53147405 - 2²⁴ = 36370189 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 (53147407) 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, 74501 + ... + 75210.

It is an arithmetic number, because the mean of its divisors is an integer number (8084448).

Almost surely, 2^53147405 is an apocalyptic number.

It is an amenable number.

53147405 is a deficient number, since it is larger than the sum of its proper divisors (11528179).

53147405 is a wasteful number, since it uses less digits than its factorization.

53147405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149787.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 53147405 is about 7290.2266768599. The cubic root of 53147405 is about 375.9764891177.

The spelling of 53147405 in words is "fifty-three million, one hundred forty-seven thousand, four hundred five".