245400525 has 36 divisors (see below), whose sum is σ = 465402132. Its totient is φ = 123179520.

The previous prime is 245400521. The next prime is 245400563. The reversal of 245400525 is 525004542.

It can be written as a sum of positive squares in 6 ways, for example, as 16695396 + 228705129 = 4086^2 + 15123^2 .

It is not a de Polignac number, because 245400525 - 2² = 245400521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245400521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28254 + ... + 35903.

It is an arithmetic number, because the mean of its divisors is an integer number (12927837).

Almost surely, 2^245400525 is an apocalyptic number.

245400525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245400525 is a deficient number, since it is larger than the sum of its proper divisors (220001607).

245400525 is a wasteful number, since it uses less digits than its factorization.

245400525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64190 (or 64182 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 245400525 is about 15665.2649195601. The cubic root of 245400525 is about 626.0732705562.

The spelling of 245400525 in words is "two hundred forty-five million, four hundred thousand, five hundred twenty-five".