52250145 has 8 divisors (see below), whose sum is σ = 83600256. Its totient is φ = 27866736.

The previous prime is 52250137. The next prime is 52250147. The reversal of 52250145 is 54105225.

52250145 = 717² + 718² + ... + 806².

It is a happy number.

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

It is not a de Polignac number, because 52250145 - 2³ = 52250137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52250147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1741657 + ... + 1741686.

It is an arithmetic number, because the mean of its divisors is an integer number (10450032).

Almost surely, 2^52250145 is an apocalyptic number.

It is an amenable number.

52250145 is a deficient number, since it is larger than the sum of its proper divisors (31350111).

52250145 is a wasteful number, since it uses less digits than its factorization.

52250145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483351.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 52250145 is about 7228.4261772532. The cubic root of 52250145 is about 373.8486643095.

The spelling of 52250145 in words is "fifty-two million, two hundred fifty thousand, one hundred forty-five".