245265251 has 8 divisors (see below), whose sum is σ = 305785344. Its totient is φ = 191115720.

The previous prime is 245265247. The next prime is 245265287. The reversal of 245265251 is 152562542.

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 245265251 - 2² = 245265247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245265451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592555 + ... + 1592708.

It is an arithmetic number, because the mean of its divisors is an integer number (38223168).

Almost surely, 2^245265251 is an apocalyptic number.

245265251 is a deficient number, since it is larger than the sum of its proper divisors (60520093).

245265251 is a wasteful number, since it uses less digits than its factorization.

245265251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185281.

The product of its digits is 24000, while the sum is 32.

The square root of 245265251 is about 15660.9466827520. The cubic root of 245265251 is about 625.9582110332.

The spelling of 245265251 in words is "two hundred forty-five million, two hundred sixty-five thousand, two hundred fifty-one".