53001240 has 64 divisors (see below), whose sum is σ = 168363360. Its totient is φ = 13301760.

The previous prime is 53001239. The next prime is 53001259. The reversal of 53001240 is 4210035.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10951 + ... + 15030.

Almost surely, 2^53001240 is an apocalyptic number.

It is an amenable number.

53001240 is an abundant number, since it is smaller than the sum of its proper divisors (115362120).

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

53001240 is a wasteful number, since it uses less digits than its factorization.

53001240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26012 (or 26008 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 53001240 is about 7280.1950523320. The cubic root of 53001240 is about 375.6315048297.

Adding to 53001240 its reverse (4210035), we get a palindrome (57211275).

The spelling of 53001240 in words is "fifty-three million, one thousand, two hundred forty".