4121859825 has 24 divisors (see below), whose sum is σ = 7572010400. Its totient is φ = 2198324880.

The previous prime is 4121859823. The next prime is 4121859857. The reversal of 4121859825 is 5289581214.

4121859825 is a `hidden beast` number, since 41 + 2 + 18 + 598 + 2 + 5 = 666.

It is not a de Polignac number, because 4121859825 - 2¹ = 4121859823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (4121859823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3052555 + ... + 3053904.

Almost surely, 2^4121859825 is an apocalyptic number.

4121859825 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4121859825 is a deficient number, since it is larger than the sum of its proper divisors (3450150575).

4121859825 is a wasteful number, since it uses less digits than its factorization.

4121859825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106478 (or 6106467 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 4121859825 is about 64201.7120098834. The cubic root of 4121859825 is about 1603.3601033399.

The spelling of 4121859825 in words is "four billion, one hundred twenty-one million, eight hundred fifty-nine thousand, eight hundred twenty-five".