201530425125 has 32 divisors (see below), whose sum is σ = 336540207744. Its totient is φ = 107100336000.

The previous prime is 201530425099. The next prime is 201530425169. The reversal of 201530425125 is 521524035102.

It is not a de Polignac number, because 201530425125 - 2⁸ = 201530424869 is a prime.

It is a super-2 number, since 2×201530425125² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201530425092 and 201530425101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 850879 + ... + 1061628.

It is an arithmetic number, because the mean of its divisors is an integer number (10516881492).

Almost surely, 2^201530425125 is an apocalyptic number.

201530425125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201530425125 is a deficient number, since it is larger than the sum of its proper divisors (135009782619).

201530425125 is a wasteful number, since it uses less digits than its factorization.

201530425125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912806 (or 1912796 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 201530425125 in words is "two hundred one billion, five hundred thirty million, four hundred twenty-five thousand, one hundred twenty-five".