53415444 has 24 divisors (see below), whose sum is σ = 124871040. Its totient is φ = 17771584.

The previous prime is 53415437. The next prime is 53415463. The reversal of 53415444 is 44451435.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2917 + ... + 10739.

It is an arithmetic number, because the mean of its divisors is an integer number (5202960).

Almost surely, 2^53415444 is an apocalyptic number.

It is an amenable number.

53415444 is an abundant number, since it is smaller than the sum of its proper divisors (71455596).

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

53415444 is a wasteful number, since it uses less digits than its factorization.

53415444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8399 (or 8397 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 53415444 is about 7308.5870043395. The cubic root of 53415444 is about 376.6074852417.

Adding to 53415444 its reverse (44451435), we get a palindrome (97866879).

The spelling of 53415444 in words is "fifty-three million, four hundred fifteen thousand, four hundred forty-four".