2420124705625 has 45 divisors (see below), whose sum is σ = 3324695000011. Its totient is φ = 1759779560000.

The previous prime is 2420124705569. The next prime is 2420124705629. The reversal of 2420124705625 is 5265074210242.

The square root of 2420124705625 is 1555675.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 2416771832409 + 3352873216 = 1554597^2 + 57904^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2420124705625 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2420124705629) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 427807797 + ... + 427813453.

Almost surely, 2^{2420124705625} is an apocalyptic number.

2420124705625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2420124705625 is the 1555675-th square number.

2420124705625 is the 777838-th centered octagonal number.

It is an amenable number.

2420124705625 is a deficient number, since it is larger than the sum of its proper divisors (904570294386).

2420124705625 is an frugal number, since it uses more digits than its factorization.

2420124705625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11356 (or 5673 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 40.

Adding to 2420124705625 its reverse (5265074210242), we get a palindrome (7685198915867).

The spelling of 2420124705625 in words is "two trillion, four hundred twenty billion, one hundred twenty-four million, seven hundred five thousand, six hundred twenty-five".