55004263 has 4 divisors (see below), whose sum is σ = 55076560. Its totient is φ = 54931968.

The previous prime is 55004251. The next prime is 55004281. The reversal of 55004263 is 36240055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55004263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55004233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34995 + ... + 36532.

It is an arithmetic number, because the mean of its divisors is an integer number (13769140).

Almost surely, 2^55004263 is an apocalyptic number.

55004263 is a deficient number, since it is larger than the sum of its proper divisors (72297).

55004263 is an equidigital number, since it uses as much as digits as its factorization.

55004263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72296.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 55004263 is about 7416.4858929280. The cubic root of 55004263 is about 380.3050712686.

The spelling of 55004263 in words is "fifty-five million, four thousand, two hundred sixty-three".