252661120501 has 8 divisors (see below), whose sum is σ = 271291477824. Its totient is φ = 234449423040.

The previous prime is 252661120489. The next prime is 252661120511. The reversal of 252661120501 is 105021166252.

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 252661120501 - 2¹¹ = 252661118453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252661120511) 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, 104663715 + ... + 104666128.

It is an arithmetic number, because the mean of its divisors is an integer number (33911434728).

Almost surely, 2^252661120501 is an apocalyptic number.

It is an amenable number.

252661120501 is a deficient number, since it is larger than the sum of its proper divisors (18630357323).

252661120501 is a wasteful number, since it uses less digits than its factorization.

252661120501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209329931.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 252661120501 its reverse (105021166252), we get a palindrome (357682286753).

The spelling of 252661120501 in words is "two hundred fifty-two billion, six hundred sixty-one million, one hundred twenty thousand, five hundred one".