53725145 has 8 divisors (see below), whose sum is σ = 64642560. Its totient is φ = 42865200.

The previous prime is 53725121. The next prime is 53725163. The reversal of 53725145 is 54152735.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53725145 - 2⁸ = 53724889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12281 + ... + 16070.

It is an arithmetic number, because the mean of its divisors is an integer number (8080320).

Almost surely, 2^53725145 is an apocalyptic number.

It is an amenable number.

53725145 is a deficient number, since it is larger than the sum of its proper divisors (10917415).

53725145 is a wasteful number, since it uses less digits than its factorization.

53725145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28735.

The product of its digits is 21000, while the sum is 32.

The square root of 53725145 is about 7329.7438563704. The cubic root of 53725145 is about 377.3339357004. Note that the first 3 decimals are identical.

The spelling of 53725145 in words is "fifty-three million, seven hundred twenty-five thousand, one hundred forty-five".