53015740 has 12 divisors (see below), whose sum is σ = 111333096. Its totient is φ = 21206288.

The previous prime is 53015737. The next prime is 53015761. The reversal of 53015740 is 4751035.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325374 + ... + 1325413.

It is an arithmetic number, because the mean of its divisors is an integer number (9277758).

Almost surely, 2^53015740 is an apocalyptic number.

It is an amenable number.

53015740 is an abundant number, since it is smaller than the sum of its proper divisors (58317356).

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

53015740 is a wasteful number, since it uses less digits than its factorization.

53015740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650796 (or 2650794 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 53015740 is about 7281.1908366695. The cubic root of 53015740 is about 375.6657566082.

Adding to 53015740 its reverse (4751035), we get a palindrome (57766775).

The spelling of 53015740 in words is "fifty-three million, fifteen thousand, seven hundred forty".