52619639 has 2 divisors, whose sum is σ = 52619640. Its totient is φ = 52619638.

The previous prime is 52619629. The next prime is 52619647. The reversal of 52619639 is 93691625.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52619639 - 2⁸ = 52619383 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 52619596 and 52619605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52619629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26309819 + 26309820.

It is an arithmetic number, because the mean of its divisors is an integer number (26309820).

Almost surely, 2^52619639 is an apocalyptic number.

52619639 is a deficient number, since it is larger than the sum of its proper divisors (1).

52619639 is an equidigital number, since it uses as much as digits as its factorization.

52619639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 41.

The square root of 52619639 is about 7253.9395503409. The cubic root of 52619639 is about 374.7278357039.

The spelling of 52619639 in words is "fifty-two million, six hundred nineteen thousand, six hundred thirty-nine".