2025378861 has 16 divisors (see below), whose sum is σ = 3119300928. Its totient is φ = 1155296000.

The previous prime is 2025378857. The next prime is 2025378877. The reversal of 2025378861 is 1688735202.

2025378861 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2025378861 - 2² = 2025378857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025378841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1804590 + ... + 1805711.

It is an arithmetic number, because the mean of its divisors is an integer number (194956308).

Almost surely, 2^2025378861 is an apocalyptic number.

It is an amenable number.

2025378861 is a deficient number, since it is larger than the sum of its proper divisors (1093922067).

2025378861 is a wasteful number, since it uses less digits than its factorization.

2025378861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610332.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 2025378861 is about 45004.2093697912. The cubic root of 2025378861 is about 1265.2278927223.

The spelling of 2025378861 in words is "two billion, twenty-five million, three hundred seventy-eight thousand, eight hundred sixty-one".