54087513 has 8 divisors (see below), whose sum is σ = 75252288. Its totient is φ = 34490544.

The previous prime is 54087511. The next prime is 54087521. The reversal of 54087513 is 31578045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54087513 - 2¹ = 54087511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54087511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391870 + ... + 392007.

It is an arithmetic number, because the mean of its divisors is an integer number (9406536).

Almost surely, 2^54087513 is an apocalyptic number.

It is an amenable number.

54087513 is a deficient number, since it is larger than the sum of its proper divisors (21164775).

54087513 is a wasteful number, since it uses less digits than its factorization.

54087513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783903.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 54087513 is about 7354.4213232585. The cubic root of 54087513 is about 378.1803889719.

It can be divided in two parts, 5408 and 7513, that added together give a palindrome (12921).

The spelling of 54087513 in words is "fifty-four million, eighty-seven thousand, five hundred thirteen".