53909496 has 128 divisors (see below), whose sum is σ = 158054400. Its totient is φ = 17003520.

The previous prime is 53909419. The next prime is 53909497. The reversal of 53909496 is 69490935.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53909497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555720 + ... + 555816.

It is an arithmetic number, because the mean of its divisors is an integer number (1234800).

Almost surely, 2^53909496 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 53909496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79027200).

53909496 is an abundant number, since it is smaller than the sum of its proper divisors (104144904).

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

53909496 is a wasteful number, since it uses less digits than its factorization.

53909496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 53909496 is about 7342.3086287625. The cubic root of 53909496 is about 377.7650341209.

The spelling of 53909496 in words is "fifty-three million, nine hundred nine thousand, four hundred ninety-six".