55051263 has 6 divisors (see below), whose sum is σ = 79518504. Its totient is φ = 36700836.

The previous prime is 55051261. The next prime is 55051267. The reversal of 55051263 is 36215055.

55051263 is a `hidden beast` number, since 550 + 51 + 2 + 63 = 666.

It is not a de Polignac number, because 55051263 - 2¹ = 55051261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55051261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3058395 + ... + 3058412.

It is an arithmetic number, because the mean of its divisors is an integer number (13253084).

Almost surely, 2^55051263 is an apocalyptic number.

55051263 is a deficient number, since it is larger than the sum of its proper divisors (24467241).

55051263 is a wasteful number, since it uses less digits than its factorization.

55051263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6116813 (or 6116810 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 55051263 is about 7419.6538328954. The cubic root of 55051263 is about 380.4133613580.

The spelling of 55051263 in words is "fifty-five million, fifty-one thousand, two hundred sixty-three".