54740521 has 6 divisors (see below), whose sum is σ = 60169466. Its totient is φ = 49764000.

The previous prime is 54740509. The next prime is 54740533. The reversal of 54740521 is 12504745.

It is the 3021-st star number.

It is an interprime number because it is at equal distance from previous prime (54740509) and next prime (54740533).

It can be written as a sum of positive squares in only one way, i.e., 35283600 + 19456921 = 5940^2 + 4411^2 .

It is not a de Polignac number, because 54740521 - 2⁵ = 54740489 is a prime.

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 54740521.

It is not an unprimeable number, because it can be changed into a prime (54740551) 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 5 ways as a sum of consecutive naturals, for example, 226080 + ... + 226321.

Almost surely, 2^54740521 is an apocalyptic number.

It is an amenable number.

54740521 is a deficient number, since it is larger than the sum of its proper divisors (5428945).

54740521 is a wasteful number, since it uses less digits than its factorization.

54740521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452423 (or 452412 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 54740521 is about 7398.6837342868. The cubic root of 54740521 is about 379.6962508023.

The spelling of 54740521 in words is "fifty-four million, seven hundred forty thousand, five hundred twenty-one".