53490569 has 8 divisors (see below), whose sum is σ = 58713312. Its totient is φ = 48327840.

The previous prime is 53490557. The next prime is 53490599. The reversal of 53490569 is 96509435.

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

It is not a de Polignac number, because 53490569 - 2¹² = 53486473 is a prime.

It is a super-2 number, since 2×53490569² = 5722481943887522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53490539) 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 7 ways as a sum of consecutive naturals, for example, 13124 + ... + 16709.

It is an arithmetic number, because the mean of its divisors is an integer number (7339164).

Almost surely, 2^53490569 is an apocalyptic number.

It is an amenable number.

53490569 is a deficient number, since it is larger than the sum of its proper divisors (5222743).

53490569 is a wasteful number, since it uses less digits than its factorization.

53490569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30007.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 53490569 is about 7313.7247008621. The cubic root of 53490569 is about 376.7839596950.

The spelling of 53490569 in words is "fifty-three million, four hundred ninety thousand, five hundred sixty-nine".