242553025 has 72 divisors (see below), whose sum is σ = 377413344. Its totient is φ = 152755200.

The previous prime is 242553023. The next prime is 242553029. The reversal of 242553025 is 520355242.

It is not a de Polignac number, because 242553025 - 2¹ = 242553023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242552984 and 242553002.

It is not an unprimeable number, because it can be changed into a prime (242553023) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 789922 + ... + 790228.

It is an arithmetic number, because the mean of its divisors is an integer number (5241852).

Almost surely, 2^242553025 is an apocalyptic number.

242553025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242553025 is a deficient number, since it is larger than the sum of its proper divisors (134860319).

242553025 is a wasteful number, since it uses less digits than its factorization.

242553025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 242553025 is about 15574.1139394830. The cubic root of 242553025 is about 623.6423007802.

The spelling of 242553025 in words is "two hundred forty-two million, five hundred fifty-three thousand, twenty-five".