2125514578 has 8 divisors (see below), whose sum is σ = 3478114800. Its totient is φ = 966142980.

The previous prime is 2125514569. The next prime is 2125514581. The reversal of 2125514578 is 8754155212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2125514578.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48307128 + ... + 48307171.

It is an arithmetic number, because the mean of its divisors is an integer number (434764350).

Almost surely, 2^2125514578 is an apocalyptic number.

2125514578 is a deficient number, since it is larger than the sum of its proper divisors (1352600222).

2125514578 is a wasteful number, since it uses less digits than its factorization.

2125514578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96614312.

The product of its digits is 112000, while the sum is 40.

The square root of 2125514578 is about 46103.3033306725. The cubic root of 2125514578 is about 1285.7445614587.

The spelling of 2125514578 in words is "two billion, one hundred twenty-five million, five hundred fourteen thousand, five hundred seventy-eight".