188490325425 has 24 divisors (see below), whose sum is σ = 315138892320. Its totient is φ = 99398640000.

The previous prime is 188490325423. The next prime is 188490325427. The reversal of 188490325425 is 524523094881.

It is an interprime number because it is at equal distance from previous prime (188490325423) and next prime (188490325427).

It is not a de Polignac number, because 188490325425 - 2¹ = 188490325423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188490325421) 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, 14112451 + ... + 14125800.

It is an arithmetic number, because the mean of its divisors is an integer number (13130787180).

Almost surely, 2^188490325425 is an apocalyptic number.

188490325425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

188490325425 is a deficient number, since it is larger than the sum of its proper divisors (126648566895).

188490325425 is a wasteful number, since it uses less digits than its factorization.

188490325425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28238353 (or 28238348 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 188490325425 in words is "one hundred eighty-eight billion, four hundred ninety million, three hundred twenty-five thousand, four hundred twenty-five".