245561995 has 32 divisors (see below), whose sum is σ = 351630720. Its totient is φ = 161064960.

The previous prime is 245561971. The next prime is 245562001. The reversal of 245561995 is 599165542.

It is not a de Polignac number, because 245561995 - 2⁵ = 245561963 is a prime.

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, 113625 + ... + 115765.

It is an arithmetic number, because the mean of its divisors is an integer number (10988460).

Almost surely, 2^245561995 is an apocalyptic number.

245561995 is a deficient number, since it is larger than the sum of its proper divisors (106068725).

245561995 is a wasteful number, since it uses less digits than its factorization.

245561995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295.

The product of its digits is 486000, while the sum is 46.

The square root of 245561995 is about 15670.4178310599. The cubic root of 245561995 is about 626.2105561722.

The spelling of 245561995 in words is "two hundred forty-five million, five hundred sixty-one thousand, nine hundred ninety-five".