53147963 has 8 divisors (see below), whose sum is σ = 60500736. Its totient is φ = 46215400.

The previous prime is 53147953. The next prime is 53147987. The reversal of 53147963 is 36974135.

It is a happy number.

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

It is not a de Polignac number, because 53147963 - 2¹⁰ = 53146939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53147953) 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, 104783 + ... + 105288.

It is an arithmetic number, because the mean of its divisors is an integer number (7562592).

Almost surely, 2^53147963 is an apocalyptic number.

53147963 is a deficient number, since it is larger than the sum of its proper divisors (7352773).

53147963 is a wasteful number, since it uses less digits than its factorization.

53147963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210105.

The product of its digits is 68040, while the sum is 38.

The square root of 53147963 is about 7290.2649471744. The cubic root of 53147963 is about 375.9778049182.

Subtracting from 53147963 its reverse (36974135), we obtain a triangular number (16173828 = T₅₆₈₇).

The spelling of 53147963 in words is "fifty-three million, one hundred forty-seven thousand, nine hundred sixty-three".