53112047 has 4 divisors (see below), whose sum is σ = 53860176. Its totient is φ = 52363920.

The previous prime is 53112041. The next prime is 53112067. The reversal of 53112047 is 74021135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74021135 = 5 ⋅14804227.

It is a de Polignac number, because none of the positive numbers 2^k-53112047 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 (53112041) 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, 373958 + ... + 374099.

It is an arithmetic number, because the mean of its divisors is an integer number (13465044).

Almost surely, 2^53112047 is an apocalyptic number.

53112047 is a deficient number, since it is larger than the sum of its proper divisors (748129).

53112047 is an equidigital number, since it uses as much as digits as its factorization.

53112047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748128.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 53112047 is about 7287.8012459177. The cubic root of 53112047 is about 375.8930938523.

The spelling of 53112047 in words is "fifty-three million, one hundred twelve thousand, forty-seven".