53225129 has 4 divisors (see below), whose sum is σ = 54663684. Its totient is φ = 51786576.

The previous prime is 53225111. The next prime is 53225141. The reversal of 53225129 is 92152235.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45091225 + 8133904 = 6715^2 + 2852^2 .

It is a cyclic number.

It is not a de Polignac number, because 53225129 - 2²⁴ = 36447913 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53225149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719222 + ... + 719295.

It is an arithmetic number, because the mean of its divisors is an integer number (13665921).

Almost surely, 2^53225129 is an apocalyptic number.

It is an amenable number.

53225129 is a deficient number, since it is larger than the sum of its proper divisors (1438555).

53225129 is a wasteful number, since it uses less digits than its factorization.

53225129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438554.

The product of its digits is 5400, while the sum is 29.

The square root of 53225129 is about 7295.5554277930. Note that the first 3 decimals coincide. The cubic root of 53225129 is about 376.1596787643.

The spelling of 53225129 in words is "fifty-three million, two hundred twenty-five thousand, one hundred twenty-nine".