252266537 has 8 divisors (see below), whose sum is σ = 257517000. Its totient is φ = 247052160.

The previous prime is 252266533. The next prime is 252266549. The reversal of 252266537 is 735662252.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27836176 + 224430361 = 5276^2 + 14981^2 .

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 252266537 - 2² = 252266533 is a prime.

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 252266537.

It is not an unprimeable number, because it can be changed into a prime (252266533) 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, 5339 + ... + 23087.

It is an arithmetic number, because the mean of its divisors is an integer number (32189625).

Almost surely, 2^252266537 is an apocalyptic number.

It is an amenable number.

252266537 is a deficient number, since it is larger than the sum of its proper divisors (5250463).

252266537 is a wasteful number, since it uses less digits than its factorization.

252266537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18043.

The product of its digits is 151200, while the sum is 38.

The square root of 252266537 is about 15882.9007741029. The cubic root of 252266537 is about 631.8585722435.

The spelling of 252266537 in words is "two hundred fifty-two million, two hundred sixty-six thousand, five hundred thirty-seven".