242561425 has 12 divisors (see below), whose sum is σ = 301253040. Its totient is φ = 193741520.

The previous prime is 242561419. The next prime is 242561477. The reversal of 242561425 is 524165242.

242561425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-242561425 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9114 + ... + 23836.

It is an arithmetic number, because the mean of its divisors is an integer number (25104420).

Almost surely, 2^242561425 is an apocalyptic number.

242561425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242561425 is a deficient number, since it is larger than the sum of its proper divisors (58691615).

242561425 is a wasteful number, since it uses less digits than its factorization.

242561425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15392 (or 15387 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 242561425 is about 15574.3836154116. The cubic root of 242561425 is about 623.6494999412.

Adding to 242561425 its product of digits (19200), we get a square (242580625 = 15575²).

The spelling of 242561425 in words is "two hundred forty-two million, five hundred sixty-one thousand, four hundred twenty-five".