2125554125 has 8 divisors (see below), whose sum is σ = 2652691704. Its totient is φ = 1700443200.

The previous prime is 2125554107. The next prime is 2125554139. The reversal of 2125554125 is 5214555212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9278116 + 2116276009 = 3046^2 + 46003^2 .

It is not a de Polignac number, because 2125554125 - 2¹² = 2125550029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2125554091 and 2125554100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8502092 + ... + 8502341.

It is an arithmetic number, because the mean of its divisors is an integer number (331586463).

Almost surely, 2^2125554125 is an apocalyptic number.

2125554125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2125554125 is a deficient number, since it is larger than the sum of its proper divisors (527137579).

2125554125 is an equidigital number, since it uses as much as digits as its factorization.

2125554125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17004448 (or 17004438 counting only the distinct ones).

The product of its digits is 20000, while the sum is 32.

The square root of 2125554125 is about 46103.7322241920. The cubic root of 2125554125 is about 1285.7525355317.

The spelling of 2125554125 in words is "two billion, one hundred twenty-five million, five hundred fifty-four thousand, one hundred twenty-five".