54340521 has 16 divisors (see below), whose sum is σ = 73543680. Its totient is φ = 35686800.

The previous prime is 54340487. The next prime is 54340523. The reversal of 54340521 is 12504345.

It is not a de Polignac number, because 54340521 - 2⁹ = 54340009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54340491 and 54340500.

It is not an unprimeable number, because it can be changed into a prime (54340523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62536 + ... + 63398.

It is an arithmetic number, because the mean of its divisors is an integer number (4596480).

Almost surely, 2^54340521 is an apocalyptic number.

It is an amenable number.

54340521 is a deficient number, since it is larger than the sum of its proper divisors (19203159).

54340521 is a wasteful number, since it uses less digits than its factorization.

54340521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 54340521 is about 7371.6023359918. The cubic root of 54340521 is about 378.7691499864.

Adding to 54340521 its reverse (12504345), we get a palindrome (66844866).

The spelling of 54340521 in words is "fifty-four million, three hundred forty thousand, five hundred twenty-one".