53057491 has 2 divisors, whose sum is σ = 53057492. Its totient is φ = 53057490.

The previous prime is 53057479. The next prime is 53057503. The reversal of 53057491 is 19475035.

It is a balanced prime because it is at equal distance from previous prime (53057479) and next prime (53057503).

It is a cyclic number.

It is not a de Polignac number, because 53057491 - 2⁷ = 53057363 is a prime.

It is not a weakly prime, because it can be changed into another prime (53057401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26528745 + 26528746.

It is an arithmetic number, because the mean of its divisors is an integer number (26528746).

Almost surely, 2^53057491 is an apocalyptic number.

53057491 is a deficient number, since it is larger than the sum of its proper divisors (1).

53057491 is an equidigital number, since it uses as much as digits as its factorization.

53057491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 53057491 is about 7284.0573171825. The cubic root of 53057491 is about 375.7643456029.

The spelling of 53057491 in words is "fifty-three million, fifty-seven thousand, four hundred ninety-one".