252805501 has 8 divisors (see below), whose sum is σ = 276867360. Its totient is φ = 229402992.

The previous prime is 252805493. The next prime is 252805519. The reversal of 252805501 is 105508252.

252805501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 252805501 - 2³ = 252805493 is a prime.

It is a super-2 number, since 2×252805501² = 127821242671722002, which contains 22 as substring.

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 252805501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252805541) 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, 164035 + ... + 165568.

It is an arithmetic number, because the mean of its divisors is an integer number (34608420).

Almost surely, 2^252805501 is an apocalyptic number.

It is an amenable number.

252805501 is a deficient number, since it is larger than the sum of its proper divisors (24061859).

252805501 is a wasteful number, since it uses less digits than its factorization.

252805501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329675.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 252805501 is about 15899.8585213831. The cubic root of 252805501 is about 632.3082378881.

The spelling of 252805501 in words is "two hundred fifty-two million, eight hundred five thousand, five hundred one".