54702521 has 2 divisors, whose sum is σ = 54702522. Its totient is φ = 54702520.

The previous prime is 54702517. The next prime is 54702553. The reversal of 54702521 is 12520745.

54702521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48846121 + 5856400 = 6989^2 + 2420^2 .

It is a cyclic number.

It is not a de Polignac number, because 54702521 - 2² = 54702517 is a prime.

It is not a weakly prime, because it can be changed into another prime (54782521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27351260 + 27351261.

It is an arithmetic number, because the mean of its divisors is an integer number (27351261).

Almost surely, 2^54702521 is an apocalyptic number.

It is an amenable number.

54702521 is a deficient number, since it is larger than the sum of its proper divisors (1).

54702521 is an equidigital number, since it uses as much as digits as its factorization.

54702521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 54702521 is about 7396.1152641099. The cubic root of 54702521 is about 379.6083707625.

The spelling of 54702521 in words is "fifty-four million, seven hundred two thousand, five hundred twenty-one".