242465551 has 4 divisors (see below), whose sum is σ = 249018712. Its totient is φ = 235912392.

The previous prime is 242465537. The next prime is 242465567. The reversal of 242465551 is 155564242.

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 242465551 - 2¹⁵ = 242432783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242465581) 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, 3276525 + ... + 3276598.

It is an arithmetic number, because the mean of its divisors is an integer number (62254678).

Almost surely, 2^242465551 is an apocalyptic number.

242465551 is a deficient number, since it is larger than the sum of its proper divisors (6553161).

242465551 is an equidigital number, since it uses as much as digits as its factorization.

242465551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6553160.

The product of its digits is 48000, while the sum is 34.

The square root of 242465551 is about 15571.3053723829. The cubic root of 242465551 is about 623.5673219230.

The spelling of 242465551 in words is "two hundred forty-two million, four hundred sixty-five thousand, five hundred fifty-one".