3819858025 has 27 divisors (see below), whose sum is σ = 4858018711. Its totient is φ = 2979495440.

The previous prime is 3819857981. The next prime is 3819858041. The reversal of 3819858025 is 5208589183.

The square root of 3819858025 is 61805.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1375148889 + 2444709136 = 37083^2 + 49444^2 .

It is not a de Polignac number, because 3819858025 - 2⁹ = 3819857513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3819858025.

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 26 ways as a sum of consecutive naturals, for example, 14524044 + ... + 14524306.

Almost surely, 2^3819858025 is an apocalyptic number.

3819858025 is the 61805-th square number.

3819858025 is the 30903-rd centered octagonal number.

It is an amenable number.

3819858025 is a deficient number, since it is larger than the sum of its proper divisors (1038160686).

3819858025 is an frugal number, since it uses more digits than its factorization.

3819858025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 49.

The cubic root of 3819858025 is about 1563.2042981693.

Multiplying 3819858025 by its sum of digits (49), we get a square (187173043225 = 432635²).

The spelling of 3819858025 in words is "three billion, eight hundred nineteen million, eight hundred fifty-eight thousand, twenty-five".