252746266537 has 8 divisors (see below), whose sum is σ = 253655742600. Its totient is φ = 251838123264.

The previous prime is 252746266511. The next prime is 252746266547. The reversal of 252746266537 is 735662647252.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34226480016 + 218519786521 = 185004^2 + 467461^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252746266537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252746266547) 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, 47539 + ... + 712567.

It is an arithmetic number, because the mean of its divisors is an integer number (31706967825).

Almost surely, 2^252746266537 is an apocalyptic number.

It is an amenable number.

252746266537 is a deficient number, since it is larger than the sum of its proper divisors (909476063).

252746266537 is an equidigital number, since it uses as much as digits as its factorization.

252746266537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666395.

The product of its digits is 25401600, while the sum is 55.

The spelling of 252746266537 in words is "two hundred fifty-two billion, seven hundred forty-six million, two hundred sixty-six thousand, five hundred thirty-seven".