53115325 has 12 divisors (see below), whose sum is σ = 66249108. Its totient is φ = 42243200.

The previous prime is 53115301. The next prime is 53115329. The reversal of 53115325 is 52351135.

It can be written as a sum of positive squares in 6 ways, for example, as 4923961 + 48191364 = 2219^2 + 6942^2 .

It is not a de Polignac number, because 53115325 - 2⁹ = 53114813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53115325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53115329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1816 + ... + 10465.

It is an arithmetic number, because the mean of its divisors is an integer number (5520759).

Almost surely, 2^53115325 is an apocalyptic number.

It is an amenable number.

53115325 is a deficient number, since it is larger than the sum of its proper divisors (13133783).

53115325 is a wasteful number, since it uses less digits than its factorization.

53115325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12464 (or 12459 counting only the distinct ones).

The product of its digits is 2250, while the sum is 25.

The square root of 53115325 is about 7288.0261388115. The cubic root of 53115325 is about 375.9008268889.

The spelling of 53115325 in words is "fifty-three million, one hundred fifteen thousand, three hundred twenty-five".