2420722755 has 48 divisors (see below), whose sum is σ = 4581514080. Its totient is φ = 1172620800.

The previous prime is 2420722753. The next prime is 2420722763. The reversal of 2420722755 is 5572270242.

2420722755 is a `hidden beast` number, since 2 + 420 + 7 + 227 + 5 + 5 = 666.

It is not a de Polignac number, because 2420722755 - 2¹ = 2420722753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2420722751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1032885 + ... + 1035225.

It is an arithmetic number, because the mean of its divisors is an integer number (95448210).

Almost surely, 2^2420722755 is an apocalyptic number.

2420722755 is a deficient number, since it is larger than the sum of its proper divisors (2160791325).

2420722755 is a wasteful number, since it uses less digits than its factorization.

2420722755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452 (or 4449 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 2420722755 is about 49200.8409989098. The cubic root of 2420722755 is about 1342.7083329922.

Adding to 2420722755 its reverse (5572270242), we get a palindrome (7992992997).

The spelling of 2420722755 in words is "two billion, four hundred twenty million, seven hundred twenty-two thousand, seven hundred fifty-five".