252207225757761 has 4 divisors (see below), whose sum is σ = 336276301010352. Its totient is φ = 168138150505172.

The previous prime is 252207225757691. The next prime is 252207225757783. The reversal of 252207225757761 is 167757522702252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252207225757761 - 2¹⁷ = 252207225626689 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 252207225757695 and 252207225757704.

It is not an unprimeable number, because it can be changed into a prime (252207225757061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42034537626291 + ... + 42034537626296.

It is an arithmetic number, because the mean of its divisors is an integer number (84069075252588).

Almost surely, 2^{252207225757761} is an apocalyptic number.

It is an amenable number.

252207225757761 is a deficient number, since it is larger than the sum of its proper divisors (84069075252591).

252207225757761 is an equidigital number, since it uses as much as digits as its factorization.

252207225757761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84069075252590.

The product of its (nonzero) digits is 57624000, while the sum is 60.

The spelling of 252207225757761 in words is "two hundred fifty-two trillion, two hundred seven billion, two hundred twenty-five million, seven hundred fifty-seven thousand, seven hundred sixty-one".