52178051947 has 6 divisors (see below), whose sum is σ = 60696917628. Its totient is φ = 44724044484.

The previous prime is 52178051911. The next prime is 52178051953. The reversal of 52178051947 is 74915087125.

52178051947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52178051947 - 2⁷ = 52178051819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 1064858203 = 52178051947 / (5 + 2 + 1 + 7 + 8 + 0 + 5 + 1 + 9 + 4 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52178051947.

It is not an unprimeable number, because it can be changed into a prime (52178057947) 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, 532429053 + ... + 532429150.

It is an arithmetic number, because the mean of its divisors is an integer number (10116152938).

Almost surely, 2^52178051947 is an apocalyptic number.

52178051947 is a deficient number, since it is larger than the sum of its proper divisors (8518865681).

52178051947 is a wasteful number, since it uses less digits than its factorization.

52178051947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064858217 (or 1064858210 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 52178051947 in words is "fifty-two billion, one hundred seventy-eight million, fifty-one thousand, nine hundred forty-seven".