53478499 has 2 divisors, whose sum is σ = 53478500. Its totient is φ = 53478498.

The previous prime is 53478461. The next prime is 53478511. The reversal of 53478499 is 99487435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53478499 - 2²¹ = 51381347 is a prime.

It is not a weakly prime, because it can be changed into another prime (53478419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26739249 + 26739250.

It is an arithmetic number, because the mean of its divisors is an integer number (26739250).

Almost surely, 2^53478499 is an apocalyptic number.

53478499 is a deficient number, since it is larger than the sum of its proper divisors (1).

53478499 is an equidigital number, since it uses as much as digits as its factorization.

53478499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 53478499 is about 7312.8994933610. The cubic root of 53478499 is about 376.7556174745.

The spelling of 53478499 in words is "fifty-three million, four hundred seventy-eight thousand, four hundred ninety-nine".