10191025 has 12 divisors (see below), whose sum is σ = 13609372. Its totient is φ = 7525440.

The previous prime is 10191017. The next prime is 10191029. The reversal of 10191025 is 52019101.

It can be written as a sum of positive squares in 6 ways, for example, as 431649 + 9759376 = 657^2 + 3124^2 .

It is not a de Polignac number, because 10191025 - 2³ = 10191017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10190993 and 10191011.

It is not an unprimeable number, because it can be changed into a prime (10191029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15354 + ... + 16003.

Almost surely, 2^10191025 is an apocalyptic number.

It is an amenable number.

10191025 is a deficient number, since it is larger than the sum of its proper divisors (3418347).

10191025 is a wasteful number, since it uses less digits than its factorization.

10191025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31380 (or 31375 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 10191025 is about 3192.3384845596. The cubic root of 10191025 is about 216.8066616622.

The spelling of 10191025 in words is "ten million, one hundred ninety-one thousand, twenty-five".