245251503 has 64 divisors (see below), whose sum is σ = 451768320. Its totient is φ = 128272896.

The previous prime is 245251483. The next prime is 245251529. The reversal of 245251503 is 305152542.

It is a happy number.

It is not a de Polignac number, because 245251503 - 2⁹ = 245250991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245251543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117850 + ... + 119912.

It is an arithmetic number, because the mean of its divisors is an integer number (7058880).

Almost surely, 2^245251503 is an apocalyptic number.

245251503 is a deficient number, since it is larger than the sum of its proper divisors (206516817).

245251503 is a wasteful number, since it uses less digits than its factorization.

245251503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133 (or 2127 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 245251503 is about 15660.5077503892. The cubic root of 245251503 is about 625.9465150778.

The spelling of 245251503 in words is "two hundred forty-five million, two hundred fifty-one thousand, five hundred three".