53919251 has 2 divisors, whose sum is σ = 53919252. Its totient is φ = 53919250.

The previous prime is 53919241. The next prime is 53919253. The reversal of 53919251 is 15291935.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53919251 is a prime.

Together with 53919253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53919253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26959625 + 26959626.

It is an arithmetic number, because the mean of its divisors is an integer number (26959626).

Almost surely, 2^53919251 is an apocalyptic number.

53919251 is a deficient number, since it is larger than the sum of its proper divisors (1).

53919251 is an equidigital number, since it uses as much as digits as its factorization.

53919251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12150, while the sum is 35.

The square root of 53919251 is about 7342.9728993099. The cubic root of 53919251 is about 377.7878184535.

The spelling of 53919251 in words is "fifty-three million, nine hundred nineteen thousand, two hundred fifty-one".