54005613 has 4 divisors (see below), whose sum is σ = 72007488. Its totient is φ = 36003740.

The previous prime is 54005599. The next prime is 54005621. The reversal of 54005613 is 31650045.

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 54005613 - 2¹³ = 53997421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54005113) 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, 9000933 + ... + 9000938.

It is an arithmetic number, because the mean of its divisors is an integer number (18001872).

Almost surely, 2^54005613 is an apocalyptic number.

It is an amenable number.

54005613 is a deficient number, since it is larger than the sum of its proper divisors (18001875).

54005613 is a wasteful number, since it uses less digits than its factorization.

54005613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18001874.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 54005613 is about 7348.8511347013. The cubic root of 54005613 is about 377.9894106941.

Adding to 54005613 its reverse (31650045), we get a palindrome (85655658).

The spelling of 54005613 in words is "fifty-four million, five thousand, six hundred thirteen".