53445004 has 12 divisors (see below), whose sum is σ = 93610944. Its totient is φ = 26699024.

The previous prime is 53444977. The next prime is 53445011. The reversal of 53445004 is 40054435.

It is a self number, because there is not a number n which added to its sum of digits gives 53445004.

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, 124 + ... + 10339.

It is an arithmetic number, because the mean of its divisors is an integer number (7800912).

Almost surely, 2^53445004 is an apocalyptic number.

It is an amenable number.

53445004 is a deficient number, since it is larger than the sum of its proper divisors (40165940).

53445004 is a wasteful number, since it uses less digits than its factorization.

53445004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11744 (or 11742 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 53445004 is about 7310.6090033594. The cubic root of 53445004 is about 376.6769437072.

Adding to 53445004 its reverse (40054435), we get a palindrome (93499439).

The spelling of 53445004 in words is "fifty-three million, four hundred forty-five thousand, four".