54142513 has 4 divisors (see below), whose sum is σ = 54568960. Its totient is φ = 53716068.

The previous prime is 54142453. The next prime is 54142519. The reversal of 54142513 is 31524145.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54142513 - 2¹³ = 54134321 is a prime.

It is a Duffinian 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, 213033 + ... + 213286.

It is an arithmetic number, because the mean of its divisors is an integer number (13642240).

Almost surely, 2^54142513 is an apocalyptic number.

It is an amenable number.

54142513 is a deficient number, since it is larger than the sum of its proper divisors (426447).

54142513 is a wasteful number, since it uses less digits than its factorization.

54142513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426446.

The product of its digits is 2400, while the sum is 25.

The square root of 54142513 is about 7358.1596204486. The cubic root of 54142513 is about 378.3085323821.

Adding to 54142513 its reverse (31524145), we get a palindrome (85666658).

The spelling of 54142513 in words is "fifty-four million, one hundred forty-two thousand, five hundred thirteen".