54521755 has 4 divisors (see below), whose sum is σ = 65426112. Its totient is φ = 43617400.

The previous prime is 54521713. The next prime is 54521791. The reversal of 54521755 is 55712545.

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

It is a de Polignac number, because none of the positive numbers 2^k-54521755 is a prime.

It is a super-3 number, since 3×54521755³ (a number of 24 digits) contains 333 as substring.

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 54521755.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5452171 + ... + 5452180.

It is an arithmetic number, because the mean of its divisors is an integer number (16356528).

Almost surely, 2^54521755 is an apocalyptic number.

54521755 is a deficient number, since it is larger than the sum of its proper divisors (10904357).

54521755 is a wasteful number, since it uses less digits than its factorization.

54521755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10904356.

The product of its digits is 35000, while the sum is 34.

The square root of 54521755 is about 7383.8848176282. The cubic root of 54521755 is about 379.1897671927.

The spelling of 54521755 in words is "fifty-four million, five hundred twenty-one thousand, seven hundred fifty-five".