55146863 has 2 divisors, whose sum is σ = 55146864. Its totient is φ = 55146862.

The previous prime is 55146859. The next prime is 55146913. The reversal of 55146863 is 36864155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55146863 - 2² = 55146859 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55146823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27573431 + 27573432.

It is an arithmetic number, because the mean of its divisors is an integer number (27573432).

Almost surely, 2^55146863 is an apocalyptic number.

55146863 is a deficient number, since it is larger than the sum of its proper divisors (1).

55146863 is an equidigital number, since it uses as much as digits as its factorization.

55146863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 38.

The square root of 55146863 is about 7426.0933875087. The cubic root of 55146863 is about 380.6334379688.

The spelling of 55146863 in words is "fifty-five million, one hundred forty-six thousand, eight hundred sixty-three".