53969457 has 4 divisors (see below), whose sum is σ = 71959280. Its totient is φ = 35979636.

The previous prime is 53969453. The next prime is 53969473. The reversal of 53969457 is 75496935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53969457 - 2² = 53969453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53969453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8994907 + ... + 8994912.

It is an arithmetic number, because the mean of its divisors is an integer number (17989820).

Almost surely, 2^53969457 is an apocalyptic number.

It is an amenable number.

53969457 is a deficient number, since it is larger than the sum of its proper divisors (17989823).

53969457 is a wasteful number, since it uses less digits than its factorization.

53969457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17989822.

The product of its digits is 1020600, while the sum is 48.

The square root of 53969457 is about 7346.3907464822. The cubic root of 53969457 is about 377.9050389941.

It can be divided in two parts, 539 and 69457, that added together give a palindrome (69996).

The spelling of 53969457 in words is "fifty-three million, nine hundred sixty-nine thousand, four hundred fifty-seven".