53434749 has 4 divisors (see below), whose sum is σ = 71246336. Its totient is φ = 35623164.

The previous prime is 53434741. The next prime is 53434753. The reversal of 53434749 is 94743435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53434749 - 2³ = 53434741 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 (53434741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8905789 + ... + 8905794.

It is an arithmetic number, because the mean of its divisors is an integer number (17811584).

Almost surely, 2^53434749 is an apocalyptic number.

It is an amenable number.

53434749 is a deficient number, since it is larger than the sum of its proper divisors (17811587).

53434749 is a wasteful number, since it uses less digits than its factorization.

53434749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17811586.

The product of its digits is 181440, while the sum is 39.

The square root of 53434749 is about 7309.9075917552. The cubic root of 53434749 is about 376.6528499731.

The spelling of 53434749 in words is "fifty-three million, four hundred thirty-four thousand, seven hundred forty-nine".