55842907 has 2 divisors, whose sum is σ = 55842908. Its totient is φ = 55842906.

The previous prime is 55842901. The next prime is 55842911. The reversal of 55842907 is 70924855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55842907 - 2¹¹ = 55840859 is a prime.

It is a super-3 number, since 3×55842907³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55842907.

It is not a weakly prime, because it can be changed into another prime (55842901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27921453 + 27921454.

It is an arithmetic number, because the mean of its divisors is an integer number (27921454).

Almost surely, 2^55842907 is an apocalyptic number.

55842907 is a deficient number, since it is larger than the sum of its proper divisors (1).

55842907 is an equidigital number, since it uses as much as digits as its factorization.

55842907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 55842907 is about 7472.8111845543. The cubic root of 55842907 is about 382.2281537743.

The spelling of 55842907 in words is "fifty-five million, eight hundred forty-two thousand, nine hundred seven".