53004557 has 2 divisors, whose sum is σ = 53004558. Its totient is φ = 53004556.

The previous prime is 53004551. The next prime is 53004559. The reversal of 53004557 is 75540035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44542276 + 8462281 = 6674^2 + 2909^2 .

It is a cyclic number.

It is not a de Polignac number, because 53004557 - 2⁴ = 53004541 is a prime.

Together with 53004559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53004551) 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 as a sum of consecutive naturals, namely, 26502278 + 26502279.

It is an arithmetic number, because the mean of its divisors is an integer number (26502279).

Almost surely, 2^53004557 is an apocalyptic number.

It is an amenable number.

53004557 is a deficient number, since it is larger than the sum of its proper divisors (1).

53004557 is an equidigital number, since it uses as much as digits as its factorization.

53004557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 53004557 is about 7280.4228585983. The cubic root of 53004557 is about 375.6393407703.

The spelling of 53004557 in words is "fifty-three million, four thousand, five hundred fifty-seven".