54142511 has 4 divisors (see below), whose sum is σ = 54178800. Its totient is φ = 54106224.

The previous prime is 54142453. The next prime is 54142519. The reversal of 54142511 is 11524145.

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 54142511 - 2¹⁰ = 54141487 is a prime.

It is a super-2 number, since 2×54142511² = 5862822994770242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54142519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15806 + ... + 18923.

It is an arithmetic number, because the mean of its divisors is an integer number (13544700).

Almost surely, 2^54142511 is an apocalyptic number.

54142511 is a deficient number, since it is larger than the sum of its proper divisors (36289).

54142511 is a wasteful number, since it uses less digits than its factorization.

54142511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36288.

The product of its digits is 800, while the sum is 23.

The square root of 54142511 is about 7358.1594845450. The cubic root of 54142511 is about 378.3085277239.

Adding to 54142511 its reverse (11524145), we get a palindrome (65666656).

The spelling of 54142511 in words is "fifty-four million, one hundred forty-two thousand, five hundred eleven".