245312555 has 8 divisors (see below), whose sum is σ = 296182032. Its totient is φ = 195045408.

The previous prime is 245312531. The next prime is 245312563. The reversal of 245312555 is 555213542.

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 245312555 - 2¹⁰ = 245311531 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149684 + ... + 151313.

It is an arithmetic number, because the mean of its divisors is an integer number (37022754).

Almost surely, 2^245312555 is an apocalyptic number.

245312555 is a deficient number, since it is larger than the sum of its proper divisors (50869477).

245312555 is a wasteful number, since it uses less digits than its factorization.

245312555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301165.

The product of its digits is 30000, while the sum is 32.

The square root of 245312555 is about 15662.4568634681. The cubic root of 245312555 is about 625.9984510368.

The spelling of 245312555 in words is "two hundred forty-five million, three hundred twelve thousand, five hundred fifty-five".