52100661225 has 48 divisors (see below), whose sum is σ = 89177774400. Its totient is φ = 26808472320.

The previous prime is 52100661187. The next prime is 52100661233. The reversal of 52100661225 is 52216600125.

It is not a de Polignac number, because 52100661225 - 2⁶ = 52100661161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52100661192 and 52100661201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3099694 + ... + 3116456.

It is an arithmetic number, because the mean of its divisors is an integer number (1857870300).

Almost surely, 2^52100661225 is an apocalyptic number.

It is an amenable number.

52100661225 is a deficient number, since it is larger than the sum of its proper divisors (37077113175).

52100661225 is a wasteful number, since it uses less digits than its factorization.

52100661225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18234 (or 18229 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 52100661225 in words is "fifty-two billion, one hundred million, six hundred sixty-one thousand, two hundred twenty-five".