245145755 has 4 divisors (see below), whose sum is σ = 294174912. Its totient is φ = 196116600.

The previous prime is 245145751. The next prime is 245145773. The reversal of 245145755 is 557541542.

245145755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 245145755 - 2² = 245145751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245145751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24514571 + ... + 24514580.

It is an arithmetic number, because the mean of its divisors is an integer number (73543728).

Almost surely, 2^245145755 is an apocalyptic number.

245145755 is a deficient number, since it is larger than the sum of its proper divisors (49029157).

245145755 is an equidigital number, since it uses as much as digits as its factorization.

245145755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49029156.

The product of its digits is 140000, while the sum is 38.

The square root of 245145755 is about 15657.1311229101. The cubic root of 245145755 is about 625.8565365493.

The spelling of 245145755 in words is "two hundred forty-five million, one hundred forty-five thousand, seven hundred fifty-five".