245243525 has 6 divisors (see below), whose sum is σ = 304102002. Its totient is φ = 196194800.

The previous prime is 245243521. The next prime is 245243533. The reversal of 245243525 is 525342542.

It can be written as a sum of positive squares in 3 ways, for example, as 61559716 + 183683809 = 7846^2 + 13553^2 .

It is not a de Polignac number, because 245243525 - 2² = 245243521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245243491 and 245243500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245243521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4904846 + ... + 4904895.

It is an arithmetic number, because the mean of its divisors is an integer number (50683667).

Almost surely, 2^245243525 is an apocalyptic number.

245243525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245243525 is a deficient number, since it is larger than the sum of its proper divisors (58858477).

245243525 is an equidigital number, since it uses as much as digits as its factorization.

245243525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9809751 (or 9809746 counting only the distinct ones).

The product of its digits is 48000, while the sum is 32.

The square root of 245243525 is about 15660.2530311614. The cubic root of 245243525 is about 625.9397276842.

The spelling of 245243525 in words is "two hundred forty-five million, two hundred forty-three thousand, five hundred twenty-five".