55635797 has 4 divisors (see below), whose sum is σ = 63583776. Its totient is φ = 47687820.

The previous prime is 55635791. The next prime is 55635803. The reversal of 55635797 is 79753655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79753655 = 5 ⋅15950731.

It is an interprime number because it is at equal distance from previous prime (55635791) and next prime (55635803).

It is a cyclic number.

It is not a de Polignac number, because 55635797 - 2¹⁴ = 55619413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55635791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3973979 + ... + 3973992.

It is an arithmetic number, because the mean of its divisors is an integer number (15895944).

Almost surely, 2^55635797 is an apocalyptic number.

It is an amenable number.

55635797 is a deficient number, since it is larger than the sum of its proper divisors (7947979).

55635797 is an equidigital number, since it uses as much as digits as its factorization.

55635797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7947978.

The product of its digits is 992250, while the sum is 47.

The square root of 55635797 is about 7458.9407424915. The cubic root of 55635797 is about 381.7550328584.

The spelling of 55635797 in words is "fifty-five million, six hundred thirty-five thousand, seven hundred ninety-seven".