53921545 has 8 divisors (see below), whose sum is σ = 67519296. Its totient is φ = 41261616.

The previous prime is 53921513. The next prime is 53921551. The reversal of 53921545 is 54512935.

53921545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53921545 - 2⁵ = 53921513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53921545.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 234327 + ... + 234556.

It is an arithmetic number, because the mean of its divisors is an integer number (8439912).

Almost surely, 2^53921545 is an apocalyptic number.

It is an amenable number.

53921545 is a deficient number, since it is larger than the sum of its proper divisors (13597751).

53921545 is a wasteful number, since it uses less digits than its factorization.

53921545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468911.

The product of its digits is 27000, while the sum is 34.

The square root of 53921545 is about 7343.1291014117. The cubic root of 53921545 is about 377.7931760512.

The spelling of 53921545 in words is "fifty-three million, nine hundred twenty-one thousand, five hundred forty-five".