55837807 has 2 divisors, whose sum is σ = 55837808. Its totient is φ = 55837806.

The previous prime is 55837801. The next prime is 55837819. The reversal of 55837807 is 70873855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55837807 - 2⁷ = 55837679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55837801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27918903 + 27918904.

It is an arithmetic number, because the mean of its divisors is an integer number (27918904).

Almost surely, 2^55837807 is an apocalyptic number.

55837807 is a deficient number, since it is larger than the sum of its proper divisors (1).

55837807 is an equidigital number, since it uses as much as digits as its factorization.

55837807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 55837807 is about 7472.4699397187. The cubic root of 55837807 is about 382.2165174237.

It can be divided in two parts, 55837 and 807, that added together give a square (56644 = 238²).

The spelling of 55837807 in words is "fifty-five million, eight hundred thirty-seven thousand, eight hundred seven".