54148221 has 24 divisors (see below), whose sum is σ = 80196480. Its totient is φ = 35196000.

The previous prime is 54148207. The next prime is 54148229. The reversal of 54148221 is 12284145.

It is not a de Polignac number, because 54148221 - 2⁵ = 54148189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54148229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64120 + ... + 64958.

It is an arithmetic number, because the mean of its divisors is an integer number (3341520).

Almost surely, 2^54148221 is an apocalyptic number.

It is an amenable number.

54148221 is a deficient number, since it is larger than the sum of its proper divisors (26048259).

54148221 is a wasteful number, since it uses less digits than its factorization.

54148221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 1014 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 54148221 is about 7358.5474789526. The cubic root of 54148221 is about 378.3218263668.

The spelling of 54148221 in words is "fifty-four million, one hundred forty-eight thousand, two hundred twenty-one".