52137245 has 8 divisors (see below), whose sum is σ = 62834616. Its totient is φ = 41529856.

The previous prime is 52137229. The next prime is 52137247. The reversal of 52137245 is 54273125.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 326041 + 51811204 = 571^2 + 7198^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 52137245 - 2⁴ = 52137229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52137247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21212 + ... + 23541.

It is an arithmetic number, because the mean of its divisors is an integer number (7854327).

Almost surely, 2^52137245 is an apocalyptic number.

It is an amenable number.

52137245 is a deficient number, since it is larger than the sum of its proper divisors (10697371).

52137245 is a wasteful number, since it uses less digits than its factorization.

52137245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44991.

The product of its digits is 8400, while the sum is 29.

The square root of 52137245 is about 7220.6125086450. The cubic root of 52137245 is about 373.5792044459.

The spelling of 52137245 in words is "fifty-two million, one hundred thirty-seven thousand, two hundred forty-five".