53621719 has 2 divisors, whose sum is σ = 53621720. Its totient is φ = 53621718.

The previous prime is 53621707. The next prime is 53621741. The reversal of 53621719 is 91712635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53621719 - 2⁹ = 53621207 is a prime.

It is a super-2 number, since 2×53621719² = 5750577497029922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53621779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26810859 + 26810860.

It is an arithmetic number, because the mean of its divisors is an integer number (26810860).

Almost surely, 2^53621719 is an apocalyptic number.

53621719 is a deficient number, since it is larger than the sum of its proper divisors (1).

53621719 is an equidigital number, since it uses as much as digits as its factorization.

53621719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 34.

The square root of 53621719 is about 7322.6852315254. The cubic root of 53621719 is about 377.0916456178.

The spelling of 53621719 in words is "fifty-three million, six hundred twenty-one thousand, seven hundred nineteen".