252441665 has 32 divisors (see below), whose sum is σ = 363156480. Its totient is φ = 164795904.

The previous prime is 252441659. The next prime is 252441671. The reversal of 252441665 is 566144252.

252441665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (252441659) and next prime (252441671).

It is not a de Polignac number, because 252441665 - 2¹⁰ = 252440641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72392 + ... + 75798.

It is an arithmetic number, because the mean of its divisors is an integer number (11348640).

Almost surely, 2^252441665 is an apocalyptic number.

It is an amenable number.

252441665 is a deficient number, since it is larger than the sum of its proper divisors (110714815).

252441665 is a wasteful number, since it uses less digits than its factorization.

252441665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521.

The product of its digits is 57600, while the sum is 35.

The square root of 252441665 is about 15888.4129163362. The cubic root of 252441665 is about 632.0047543105.

The spelling of 252441665 in words is "two hundred fifty-two million, four hundred forty-one thousand, six hundred sixty-five".