53450491 has 2 divisors, whose sum is σ = 53450492. Its totient is φ = 53450490.

The previous prime is 53450461. The next prime is 53450497. The reversal of 53450491 is 19405435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53450491 - 2¹¹ = 53448443 is a prime.

It is not a weakly prime, because it can be changed into another prime (53450497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26725245 + 26725246.

It is an arithmetic number, because the mean of its divisors is an integer number (26725246).

Almost surely, 2^53450491 is an apocalyptic number.

53450491 is a deficient number, since it is larger than the sum of its proper divisors (1).

53450491 is an equidigital number, since it uses as much as digits as its factorization.

53450491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 53450491 is about 7310.9842702607. The cubic root of 53450491 is about 376.6898339402.

The spelling of 53450491 in words is "fifty-three million, four hundred fifty thousand, four hundred ninety-one".