55788797 has 2 divisors, whose sum is σ = 55788798. Its totient is φ = 55788796.

The previous prime is 55788793. The next prime is 55788829. The reversal of 55788797 is 79788755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28026436 + 27762361 = 5294^2 + 5269^2 .

It is a cyclic number.

It is not a de Polignac number, because 55788797 - 2² = 55788793 is a prime.

It is a super-2 number, since 2×55788797² = 6224779741414418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55788791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27894398 + 27894399.

It is an arithmetic number, because the mean of its divisors is an integer number (27894399).

Almost surely, 2^55788797 is an apocalyptic number.

It is an amenable number.

55788797 is a deficient number, since it is larger than the sum of its proper divisors (1).

55788797 is an equidigital number, since it uses as much as digits as its factorization.

55788797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4939200, while the sum is 56.

The square root of 55788797 is about 7469.1898489729. The cubic root of 55788797 is about 382.1046582383.

The spelling of 55788797 in words is "fifty-five million, seven hundred eighty-eight thousand, seven hundred ninety-seven".