53998747 has 8 divisors (see below), whose sum is σ = 59906880. Its totient is φ = 48257160.

The previous prime is 53998739. The next prime is 53998753. The reversal of 53998747 is 74789935.

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

It is a cyclic number.

It is not a de Polignac number, because 53998747 - 2³ = 53998739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53998694 and 53998703.

It is not an unprimeable number, because it can be changed into a prime (53978747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40953 + ... + 42250.

It is an arithmetic number, because the mean of its divisors is an integer number (7488360).

Almost surely, 2^53998747 is an apocalyptic number.

53998747 is a deficient number, since it is larger than the sum of its proper divisors (5908133).

53998747 is a wasteful number, since it uses less digits than its factorization.

53998747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83273.

The product of its digits is 1905120, while the sum is 52.

The square root of 53998747 is about 7348.3839720036. The cubic root of 53998747 is about 377.9733914624.

It can be divided in two parts, 53998 and 747, that added together give a palindrome (54745).

The spelling of 53998747 in words is "fifty-three million, nine hundred ninety-eight thousand, seven hundred forty-seven".