53528247 has 12 divisors (see below), whose sum is σ = 79204944. Its totient is φ = 34814880.

The previous prime is 53528239. The next prime is 53528273. The reversal of 53528247 is 74282535.

53528247 is a `hidden beast` number, since 535 + 2 + 82 + 47 = 666.

It is not a de Polignac number, because 53528247 - 2³ = 53528239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53528297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72163 + ... + 72900.

It is an arithmetic number, because the mean of its divisors is an integer number (6600412).

Almost surely, 2^53528247 is an apocalyptic number.

53528247 is a deficient number, since it is larger than the sum of its proper divisors (25676697).

53528247 is a wasteful number, since it uses less digits than its factorization.

53528247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145110 (or 145107 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 53528247 is about 7316.3000895261. The cubic root of 53528247 is about 376.8724060282.

It can be divided in two parts, 535 and 28247, that added together give a palindrome (28782).

The spelling of 53528247 in words is "fifty-three million, five hundred twenty-eight thousand, two hundred forty-seven".