1890055494825 has 24 divisors (see below), whose sum is σ = 3125063855136. Its totient is φ = 1007974080000.

The previous prime is 1890055494809. The next prime is 1890055494827. The reversal of 1890055494825 is 5284945500981.

It is not a de Polignac number, because 1890055494825 - 2⁴ = 1890055494809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1890055494827) 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, 695310 + ... + 2064840.

It is an arithmetic number, because the mean of its divisors is an integer number (130210993964).

Almost surely, 2^{1890055494825} is an apocalyptic number.

1890055494825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1890055494825 is a deficient number, since it is larger than the sum of its proper divisors (1235008360311).

1890055494825 is a wasteful number, since it uses less digits than its factorization.

1890055494825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387945 (or 1387940 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 60.

The spelling of 1890055494825 in words is "one trillion, eight hundred ninety billion, fifty-five million, four hundred ninety-four thousand, eight hundred twenty-five".