53649696 has 48 divisors (see below), whose sum is σ = 141801408. Its totient is φ = 17760000.

The previous prime is 53649653. The next prime is 53649697. The reversal of 53649696 is 69694635.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53649697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12646 + ... + 16346.

It is an arithmetic number, because the mean of its divisors is an integer number (2954196).

Almost surely, 2^53649696 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 53649696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70900704).

53649696 is an abundant number, since it is smaller than the sum of its proper divisors (88151712).

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

53649696 is a wasteful number, since it uses less digits than its factorization.

53649696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865 (or 3857 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 48.

The square root of 53649696 is about 7324.5952789216. The cubic root of 53649696 is about 377.1572164282.

It can be divided in two parts, 53649 and 696, that added together give a palindrome (54345).

The spelling of 53649696 in words is "fifty-three million, six hundred forty-nine thousand, six hundred ninety-six".