53551147 has 8 divisors (see below), whose sum is σ = 58759344. Its totient is φ = 48498528.

The previous prime is 53551123. The next prime is 53551151. The reversal of 53551147 is 74115535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-53551147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53551187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38173 + ... + 39550.

It is an arithmetic number, because the mean of its divisors is an integer number (7344918).

Almost surely, 2^53551147 is an apocalyptic number.

53551147 is a deficient number, since it is larger than the sum of its proper divisors (5208197).

53551147 is a wasteful number, since it uses less digits than its factorization.

53551147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77789.

The product of its digits is 10500, while the sum is 31.

The square root of 53551147 is about 7317.8649208632. The cubic root of 53551147 is about 376.9261418166.

The spelling of 53551147 in words is "fifty-three million, five hundred fifty-one thousand, one hundred forty-seven".