53489247 has 8 divisors (see below), whose sum is σ = 81507456. Its totient is φ = 30565272.

The previous prime is 53489231. The next prime is 53489251. The reversal of 53489247 is 74298435.

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

It is not a de Polignac number, because 53489247 - 2⁴ = 53489231 is a prime.

It is a super-2 number, since 2×53489247² = 5722199089254018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53489199 and 53489208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53489207) 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, 1273533 + ... + 1273574.

It is an arithmetic number, because the mean of its divisors is an integer number (10188432).

Almost surely, 2^53489247 is an apocalyptic number.

53489247 is a deficient number, since it is larger than the sum of its proper divisors (28018209).

53489247 is a wasteful number, since it uses less digits than its factorization.

53489247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547117.

The product of its digits is 241920, while the sum is 42.

The square root of 53489247 is about 7313.6343222778. The cubic root of 53489247 is about 376.7808556431.

The spelling of 53489247 in words is "fifty-three million, four hundred eighty-nine thousand, two hundred forty-seven".