2102442254525 has 24 divisors (see below), whose sum is σ = 2618278919424. Its totient is φ = 1674710955200.

The previous prime is 2102442254513. The next prime is 2102442254537. The reversal of 2102442254525 is 5254522442012.

It is an interprime number because it is at equal distance from previous prime (2102442254513) and next prime (2102442254537).

It is not a de Polignac number, because 2102442254525 - 2²² = 2102438060221 is a prime.

It is a super-2 number, since 2×2102442254525² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5225867 + ... + 5613783.

It is an arithmetic number, because the mean of its divisors is an integer number (109094954976).

Almost surely, 2^{2102442254525} is an apocalyptic number.

2102442254525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2102442254525 is a deficient number, since it is larger than the sum of its proper divisors (515836664899).

2102442254525 is a wasteful number, since it uses less digits than its factorization.

2102442254525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388861 (or 388856 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 2102442254525 its reverse (5254522442012), we get a palindrome (7356964696537).

The spelling of 2102442254525 in words is "two trillion, one hundred two billion, four hundred forty-two million, two hundred fifty-four thousand, five hundred twenty-five".