242025551 has 4 divisors (see below), whose sum is σ = 243931392. Its totient is φ = 240119712.

The previous prime is 242025541. The next prime is 242025557. The reversal of 242025551 is 155520242.

242025551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242025551 - 2¹⁴ = 242009167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242025551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242025557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 952730 + ... + 952983.

It is an arithmetic number, because the mean of its divisors is an integer number (60982848).

Almost surely, 2^242025551 is an apocalyptic number.

242025551 is a deficient number, since it is larger than the sum of its proper divisors (1905841).

242025551 is a wasteful number, since it uses less digits than its factorization.

242025551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905840.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 242025551 is about 15557.1704046719. The cubic root of 242025551 is about 623.1898995725.

Adding to 242025551 its reverse (155520242), we get a palindrome (397545793).

The spelling of 242025551 in words is "two hundred forty-two million, twenty-five thousand, five hundred fifty-one".