54615617 has 4 divisors (see below), whose sum is σ = 62417856. Its totient is φ = 46813380.

The previous prime is 54615553. The next prime is 54615629. The reversal of 54615617 is 71651645.

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 54615617 - 2⁶ = 54615553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54615637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3901109 + ... + 3901122.

It is an arithmetic number, because the mean of its divisors is an integer number (15604464).

Almost surely, 2^54615617 is an apocalyptic number.

It is an amenable number.

54615617 is a deficient number, since it is larger than the sum of its proper divisors (7802239).

54615617 is an equidigital number, since it uses as much as digits as its factorization.

54615617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7802238.

The product of its digits is 25200, while the sum is 35.

The square root of 54615617 is about 7390.2379528673. The cubic root of 54615617 is about 379.4072406596.

The spelling of 54615617 in words is "fifty-four million, six hundred fifteen thousand, six hundred seventeen".