53559657 has 16 divisors (see below), whose sum is σ = 80080000. Its totient is φ = 35376912.

The previous prime is 53559643. The next prime is 53559677. The reversal of 53559657 is 75695535.

53559657 is a `hidden beast` number, since 5 + 3 + 5 + 596 + 57 = 666.

It is not a de Polignac number, because 53559657 - 2¹² = 53555561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53559677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6157 + ... + 12042.

It is an arithmetic number, because the mean of its divisors is an integer number (5005000).

Almost surely, 2^53559657 is an apocalyptic number.

It is an amenable number.

53559657 is a deficient number, since it is larger than the sum of its proper divisors (26520343).

53559657 is a wasteful number, since it uses less digits than its factorization.

53559657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18317 (or 18311 counting only the distinct ones).

The product of its digits is 708750, while the sum is 45.

The square root of 53559657 is about 7318.4463515148. The cubic root of 53559657 is about 376.9461069761.

The spelling of 53559657 in words is "fifty-three million, five hundred fifty-nine thousand, six hundred fifty-seven".