245262561 has 8 divisors (see below), whose sum is σ = 327369504. Its totient is φ = 163332000.

The previous prime is 245262509. The next prime is 245262569. The reversal of 245262561 is 165262542.

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

It is not a de Polignac number, because 245262561 - 2¹³ = 245254369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245262569) 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, 40815 + ... + 46436.

It is an arithmetic number, because the mean of its divisors is an integer number (40921188).

Almost surely, 2^245262561 is an apocalyptic number.

It is an amenable number.

245262561 is a deficient number, since it is larger than the sum of its proper divisors (82106943).

245262561 is an equidigital number, since it uses as much as digits as its factorization.

245262561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88191.

The product of its digits is 28800, while the sum is 33.

The square root of 245262561 is about 15660.8608000965. The cubic root of 245262561 is about 625.9559225805.

The spelling of 245262561 in words is "two hundred forty-five million, two hundred sixty-two thousand, five hundred sixty-one".