4242115551 has 4 divisors (see below), whose sum is σ = 5656154072. Its totient is φ = 2828077032.

The previous prime is 4242115511. The next prime is 4242115583. The reversal of 4242115551 is 1555112424.

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

It is not a de Polignac number, because 4242115551 - 2⁶ = 4242115487 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 (4242115511) 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, 707019256 + ... + 707019261.

It is an arithmetic number, because the mean of its divisors is an integer number (1414038518).

Almost surely, 2^4242115551 is an apocalyptic number.

4242115551 is a deficient number, since it is larger than the sum of its proper divisors (1414038521).

4242115551 is a wasteful number, since it uses less digits than its factorization.

4242115551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414038520.

The product of its digits is 8000, while the sum is 30.

The square root of 4242115551 is about 65131.5250166922. The cubic root of 4242115551 is about 1618.8036117941.

Adding to 4242115551 its reverse (1555112424), we get a palindrome (5797227975).

The spelling of 4242115551 in words is "four billion, two hundred forty-two million, one hundred fifteen thousand, five hundred fifty-one".