252205461 has 8 divisors (see below), whose sum is σ = 373637760. Its totient is φ = 168136956.

The previous prime is 252205423. The next prime is 252205463. The reversal of 252205461 is 164502252.

It is not a de Polignac number, because 252205461 - 2⁶ = 252205397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 9340943 = 252205461 / (2 + 5 + 2 + 2 + 0 + 5 + 4 + 6 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252205463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4670445 + ... + 4670498.

It is an arithmetic number, because the mean of its divisors is an integer number (46704720).

Almost surely, 2^252205461 is an apocalyptic number.

It is an amenable number.

252205461 is a deficient number, since it is larger than the sum of its proper divisors (121432299).

252205461 is an equidigital number, since it uses as much as digits as its factorization.

252205461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9340952 (or 9340946 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 252205461 is about 15880.9779610703. The cubic root of 252205461 is about 631.8075752445.

The spelling of 252205461 in words is "two hundred fifty-two million, two hundred five thousand, four hundred sixty-one".