2125542555 has 48 divisors (see below), whose sum is σ = 3967198560. Its totient is φ = 1048833024.

The previous prime is 2125542527. The next prime is 2125542569. The reversal of 2125542555 is 5552455212.

2125542555 is a `hidden beast` number, since 2 + 12 + 55 + 42 + 555 = 666.

It is not a de Polignac number, because 2125542555 - 2⁷ = 2125542427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21589 + ... + 68681.

It is an arithmetic number, because the mean of its divisors is an integer number (82649970).

Almost surely, 2^2125542555 is an apocalyptic number.

2125542555 is a deficient number, since it is larger than the sum of its proper divisors (1841656005).

2125542555 is a wasteful number, since it uses less digits than its factorization.

2125542555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47180 (or 47177 counting only the distinct ones).

The product of its digits is 100000, while the sum is 36.

The square root of 2125542555 is about 46103.6067461104. The cubic root of 2125542555 is about 1285.7502026210.

Adding to 2125542555 its reverse (5552455212), we get a palindrome (7677997767).

The spelling of 2125542555 in words is "two billion, one hundred twenty-five million, five hundred forty-two thousand, five hundred fifty-five".