242505025 has 12 divisors (see below), whose sum is σ = 343664512. Its totient is φ = 166289040.

The previous prime is 242505023. The next prime is 242505061. The reversal of 242505025 is 520505242.

It is a happy number.

It is not a de Polignac number, because 242505025 - 2¹ = 242505023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242505023) 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 11 ways as a sum of consecutive naturals, for example, 692697 + ... + 693046.

Almost surely, 2^242505025 is an apocalyptic number.

242505025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242505025 is a deficient number, since it is larger than the sum of its proper divisors (101159487).

242505025 is a wasteful number, since it uses less digits than its factorization.

242505025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385760 (or 1385755 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 242505025 is about 15572.5728445880. The cubic root of 242505025 is about 623.6011595283.

The spelling of 242505025 in words is "two hundred forty-two million, five hundred five thousand, twenty-five".