53002404 has 96 divisors (see below), whose sum is σ = 169155840. Its totient is φ = 13976064.

The previous prime is 53002387. The next prime is 53002409. The reversal of 53002404 is 40420035.

It is a happy number.

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 (53002409) 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, 7132 + ... + 12524.

It is an arithmetic number, because the mean of its divisors is an integer number (1762040).

Almost surely, 2^53002404 is an apocalyptic number.

53002404 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53002404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84577920).

53002404 is an abundant number, since it is smaller than the sum of its proper divisors (116153436).

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

53002404 is a wasteful number, since it uses less digits than its factorization.

53002404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5426 (or 5418 counting only the distinct ones).

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

The square root of 53002404 is about 7280.2749948062. The cubic root of 53002404 is about 375.6342546513.

Adding to 53002404 its reverse (40420035), we get a palindrome (93422439).

The spelling of 53002404 in words is "fifty-three million, two thousand, four hundred four".