101663625 has 32 divisors (see below), whose sum is σ = 193340160. Its totient is φ = 46473600.

The previous prime is 101663603. The next prime is 101663633. The reversal of 101663625 is 526366101.

It is not a de Polignac number, because 101663625 - 2⁶ = 101663561 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101663592 and 101663601.

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, 16740 + ... + 21989.

It is an arithmetic number, because the mean of its divisors is an integer number (6041880).

Almost surely, 2^101663625 is an apocalyptic number.

101663625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101663625 is a deficient number, since it is larger than the sum of its proper divisors (91676535).

101663625 is an equidigital number, since it uses as much as digits as its factorization.

101663625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38754 (or 38744 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 101663625 is about 10082.8381421106. The cubic root of 101663625 is about 466.7186945961.

The spelling of 101663625 in words is "one hundred one million, six hundred sixty-three thousand, six hundred twenty-five".