53745331 has 4 divisors (see below), whose sum is σ = 54626464. Its totient is φ = 52864200.

The previous prime is 53745311. The next prime is 53745337. The reversal of 53745331 is 13354735.

53745331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 53745331 - 2⁹ = 53744819 is a prime.

It is a super-2 number, since 2×53745331² = 5777121208599122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53745293 and 53745302.

It is not an unprimeable number, because it can be changed into a prime (53745337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440475 + ... + 440596.

It is an arithmetic number, because the mean of its divisors is an integer number (13656616).

Almost surely, 2^53745331 is an apocalyptic number.

53745331 is a deficient number, since it is larger than the sum of its proper divisors (881133).

53745331 is an equidigital number, since it uses as much as digits as its factorization.

53745331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881132.

The product of its digits is 18900, while the sum is 31.

The square root of 53745331 is about 7331.1207192352. The cubic root of 53745331 is about 377.3811879946.

The spelling of 53745331 in words is "fifty-three million, seven hundred forty-five thousand, three hundred thirty-one".