54520142 has 4 divisors (see below), whose sum is σ = 81780216. Its totient is φ = 27260070.

The previous prime is 54520073. The next prime is 54520157. The reversal of 54520142 is 24102545.

It is a happy number.

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

It is a congruent 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 as a sum of consecutive naturals, namely, 13630034 + ... + 13630037.

It is an arithmetic number, because the mean of its divisors is an integer number (20445054).

Almost surely, 2^54520142 is an apocalyptic number.

54520142 is a deficient number, since it is larger than the sum of its proper divisors (27260074).

54520142 is a wasteful number, since it uses less digits than its factorization.

54520142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27260073.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 54520142 is about 7383.7755924730. The cubic root of 54520142 is about 379.1860277733.

Adding to 54520142 its reverse (24102545), we get a palindrome (78622687).

The spelling of 54520142 in words is "fifty-four million, five hundred twenty thousand, one hundred forty-two".