53002044 has 18 divisors (see below), whose sum is σ = 133977480. Its totient is φ = 17667336.

The previous prime is 53002043. The next prime is 53002063. The reversal of 53002044 is 44020035.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53002043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 736104 + ... + 736175.

Almost surely, 2^53002044 is an apocalyptic number.

It is an amenable number.

53002044 is an abundant number, since it is smaller than the sum of its proper divisors (80975436).

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

53002044 is a wasteful number, since it uses less digits than its factorization.

53002044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472289 (or 1472284 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 53002044 is about 7280.2502704234. The cubic root of 53002044 is about 375.6334041953.

Adding to 53002044 its reverse (44020035), we get a palindrome (97022079).

Subtracting from 53002044 its reverse (44020035), we obtain a square (8982009 = 2997²).

The spelling of 53002044 in words is "fifty-three million, two thousand, forty-four".