245906775 has 18 divisors (see below), whose sum is σ = 440446760. Its totient is φ = 131150160.

The previous prime is 245906761. The next prime is 245906779. The reversal of 245906775 is 577609542.

It is not a de Polignac number, because 245906775 - 2⁹ = 245906263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 245906775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245906779) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 546235 + ... + 546684.

Almost surely, 2^245906775 is an apocalyptic number.

245906775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

245906775 is a deficient number, since it is larger than the sum of its proper divisors (194539985).

245906775 is a wasteful number, since it uses less digits than its factorization.

245906775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092935 (or 1092927 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The square root of 245906775 is about 15681.4149552902. The cubic root of 245906775 is about 626.5034949711.

The spelling of 245906775 in words is "two hundred forty-five million, nine hundred six thousand, seven hundred seventy-five".