55013807 has 2 divisors, whose sum is σ = 55013808. Its totient is φ = 55013806.

The previous prime is 55013801. The next prime is 55013839. The reversal of 55013807 is 70831055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55013807 - 2⁶ = 55013743 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55013807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55013801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27506903 + 27506904.

It is an arithmetic number, because the mean of its divisors is an integer number (27506904).

Almost surely, 2^55013807 is an apocalyptic number.

55013807 is a deficient number, since it is larger than the sum of its proper divisors (1).

55013807 is an equidigital number, since it uses as much as digits as its factorization.

55013807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 55013807 is about 7417.1292964327. The cubic root of 55013807 is about 380.3270660589.

The spelling of 55013807 in words is "fifty-five million, thirteen thousand, eight hundred seven".