54220615 has 8 divisors (see below), whose sum is σ = 65143728. Its totient is φ = 43323840.

The previous prime is 54220613. The next prime is 54220679. The reversal of 54220615 is 51602245.

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

It is not a de Polignac number, because 54220615 - 2¹ = 54220613 is a prime.

It is a super-3 number, since 3×54220615³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54220615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54220613) 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, 1726 + ... + 10555.

It is an arithmetic number, because the mean of its divisors is an integer number (8142966).

Almost surely, 2^54220615 is an apocalyptic number.

54220615 is a deficient number, since it is larger than the sum of its proper divisors (10923113).

54220615 is a wasteful number, since it uses less digits than its factorization.

54220615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13169.

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

The square root of 54220615 is about 7363.4648773522. The cubic root of 54220615 is about 378.4903516553.

The spelling of 54220615 in words is "fifty-four million, two hundred twenty thousand, six hundred fifteen".