53445325 has 6 divisors (see below), whose sum is σ = 66272234. Its totient is φ = 42756240.

The previous prime is 53445313. The next prime is 53445349. The reversal of 53445325 is 52354435.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2022084 + 51423241 = 1422^2 + 7171^2 .

It is not a de Polignac number, because 53445325 - 2¹³ = 53437133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1068882 + ... + 1068931.

Almost surely, 2^53445325 is an apocalyptic number.

It is an amenable number.

53445325 is a deficient number, since it is larger than the sum of its proper divisors (12826909).

53445325 is a wasteful number, since it uses less digits than its factorization.

53445325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137823 (or 2137818 counting only the distinct ones).

The product of its digits is 36000, while the sum is 31.

The square root of 53445325 is about 7310.6309577218. The cubic root of 53445325 is about 376.6776978348.

The spelling of 53445325 in words is "fifty-three million, four hundred forty-five thousand, three hundred twenty-five".