53040012 has 12 divisors (see below), whose sum is σ = 123760056. Its totient is φ = 17680000.

The previous prime is 53039993. The next prime is 53040023. The reversal of 53040012 is 21004035.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 53039973 and 53040000.

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, 2209989 + ... + 2210012.

It is an arithmetic number, because the mean of its divisors is an integer number (10313338).

Almost surely, 2^53040012 is an apocalyptic number.

It is an amenable number.

53040012 is an abundant number, since it is smaller than the sum of its proper divisors (70720044).

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

53040012 is a wasteful number, since it uses less digits than its factorization.

53040012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4420008 (or 4420006 counting only the distinct ones).

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

The square root of 53040012 is about 7282.8574062658. The cubic root of 53040012 is about 375.7230777489.

Adding to 53040012 its reverse (21004035), we get a palindrome (74044047).

The spelling of 53040012 in words is "fifty-three million, forty thousand, twelve".