53443025 has 12 divisors (see below), whose sum is σ = 66435852. Its totient is φ = 42647040.

The previous prime is 53442989. The next prime is 53443063. The reversal of 53443025 is 52034435.

It can be written as a sum of positive squares in 6 ways, for example, as 7974976 + 45468049 = 2824^2 + 6743^2 .

It is not a de Polignac number, because 53443025 - 2⁸ = 53442769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53442985 and 53443003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8357 + ... + 13293.

It is an arithmetic number, because the mean of its divisors is an integer number (5536321).

Almost surely, 2^53443025 is an apocalyptic number.

It is an amenable number.

53443025 is a deficient number, since it is larger than the sum of its proper divisors (12992827).

53443025 is a wasteful number, since it uses less digits than its factorization.

53443025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5380 (or 5375 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 53443025 is about 7310.4736508656. The cubic root of 53443025 is about 376.6722943617.

The spelling of 53443025 in words is "fifty-three million, four hundred forty-three thousand, twenty-five".