55709699 has 2 divisors, whose sum is σ = 55709700. Its totient is φ = 55709698.

The previous prime is 55709677. The next prime is 55709737. The reversal of 55709699 is 99690755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55709699 - 2¹² = 55705603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55709099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27854849 + 27854850.

It is an arithmetic number, because the mean of its divisors is an integer number (27854850).

Almost surely, 2^55709699 is an apocalyptic number.

55709699 is a deficient number, since it is larger than the sum of its proper divisors (1).

55709699 is an equidigital number, since it uses as much as digits as its factorization.

55709699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 765450, while the sum is 50.

The square root of 55709699 is about 7463.8930190618. The cubic root of 55709699 is about 381.9239886954.

The spelling of 55709699 in words is "fifty-five million, seven hundred nine thousand, six hundred ninety-nine".