53662019 has 2 divisors, whose sum is σ = 53662020. Its totient is φ = 53662018.

The previous prime is 53661991. The next prime is 53662031. The reversal of 53662019 is 91026635.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53662019 - 2⁸ = 53661763 is a prime.

It is a super-2 number, since 2×53662019² = 5759224566312722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53662039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26831009 + 26831010.

It is an arithmetic number, because the mean of its divisors is an integer number (26831010).

Almost surely, 2^53662019 is an apocalyptic number.

53662019 is a deficient number, since it is larger than the sum of its proper divisors (1).

53662019 is an equidigital number, since it uses as much as digits as its factorization.

53662019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 53662019 is about 7325.4364375101. The cubic root of 53662019 is about 377.1860911030.

The spelling of 53662019 in words is "fifty-three million, six hundred sixty-two thousand, nineteen".