2420720025 has 24 divisors (see below), whose sum is σ = 4041896064. Its totient is φ = 1278264000.

The previous prime is 2420720021. The next prime is 2420720047. The reversal of 2420720025 is 5200270242.

It is not a de Polignac number, because 2420720025 - 2² = 2420720021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2420719977 and 2420720004.

It is not an unprimeable number, because it can be changed into a prime (2420720021) 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 23 ways as a sum of consecutive naturals, for example, 152209 + ... + 167358.

It is an arithmetic number, because the mean of its divisors is an integer number (168412336).

Almost surely, 2^2420720025 is an apocalyptic number.

2420720025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2420720025 is a deficient number, since it is larger than the sum of its proper divisors (1621176039).

2420720025 is a wasteful number, since it uses less digits than its factorization.

2420720025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319681 (or 319676 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 2420720025 is about 49200.8132554737. The cubic root of 2420720025 is about 1342.7078282401.

Adding to 2420720025 its reverse (5200270242), we get a palindrome (7620990267).

The spelling of 2420720025 in words is "two billion, four hundred twenty million, seven hundred twenty thousand, twenty-five".