53631619 has 2 divisors, whose sum is σ = 53631620. Its totient is φ = 53631618.

The previous prime is 53631593. The next prime is 53631631. The reversal of 53631619 is 91613635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53631619 - 2⁵ = 53631587 is a prime.

It is a super-2 number, since 2×53631619² = 5752701113122322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53631659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26815809 + 26815810.

It is an arithmetic number, because the mean of its divisors is an integer number (26815810).

Almost surely, 2^53631619 is an apocalyptic number.

53631619 is a deficient number, since it is larger than the sum of its proper divisors (1).

53631619 is an equidigital number, since it uses as much as digits as its factorization.

53631619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 34.

The square root of 53631619 is about 7323.3611818618. The cubic root of 53631619 is about 377.1148512494.

The spelling of 53631619 in words is "fifty-three million, six hundred thirty-one thousand, six hundred nineteen".