53469864 has 96 divisors (see below), whose sum is σ = 166533120. Its totient is φ = 15182208.

The previous prime is 53469853. The next prime is 53469869. The reversal of 53469864 is 46896435.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53469869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139417 + ... + 139799.

It is an arithmetic number, because the mean of its divisors is an integer number (1734720).

Almost surely, 2^53469864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53469864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83266560).

53469864 is an abundant number, since it is smaller than the sum of its proper divisors (113063256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53469864 is a wasteful number, since it uses less digits than its factorization.

53469864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 672 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 53469864 is about 7312.3090744306. The cubic root of 53469864 is about 376.7353385466.

The spelling of 53469864 in words is "fifty-three million, four hundred sixty-nine thousand, eight hundred sixty-four".