2878651925 has 6 divisors (see below), whose sum is σ = 3569528418. Its totient is φ = 2302921520.

The previous prime is 2878651921. The next prime is 2878651967. The reversal of 2878651925 is 5291568782.

It can be written as a sum of positive squares in 3 ways, for example, as 1295044 + 2877356881 = 1138^2 + 53641^2 .

It is not a de Polignac number, because 2878651925 - 2² = 2878651921 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878651921) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 57573014 + ... + 57573063.

It is an arithmetic number, because the mean of its divisors is an integer number (594921403).

Almost surely, 2^2878651925 is an apocalyptic number.

2878651925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2878651925 is a deficient number, since it is larger than the sum of its proper divisors (690876493).

2878651925 is a wasteful number, since it uses less digits than its factorization.

2878651925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115146087 (or 115146082 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 53.

The square root of 2878651925 is about 53653.0700426360. The cubic root of 2878651925 is about 1422.5352983108.

The spelling of 2878651925 in words is "two billion, eight hundred seventy-eight million, six hundred fifty-one thousand, nine hundred twenty-five".