54252155 has 4 divisors (see below), whose sum is σ = 65102592. Its totient is φ = 43401720.

The previous prime is 54252131. The next prime is 54252167. The reversal of 54252155 is 55125245.

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-54252155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 5425211 + ... + 5425220.

It is an arithmetic number, because the mean of its divisors is an integer number (16275648).

Almost surely, 2^54252155 is an apocalyptic number.

54252155 is a deficient number, since it is larger than the sum of its proper divisors (10850437).

54252155 is a wasteful number, since it uses less digits than its factorization.

54252155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10850436.

The product of its digits is 10000, while the sum is 29.

The square root of 54252155 is about 7365.6062208076. The cubic root of 54252155 is about 378.5637264025.

The spelling of 54252155 in words is "fifty-four million, two hundred fifty-two thousand, one hundred fifty-five".