9951725 has 48 divisors (see below), whose sum is σ = 15415680. Its totient is φ = 6220800.

The previous prime is 9951719. The next prime is 9951731. The reversal of 9951725 is 5271599.

9951725 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9951719) and next prime (9951731).

It is not a de Polignac number, because 9951725 - 2¹⁰ = 9950701 is a prime.

Its product of digits (28350) is a multiple of the sum of its prime factors (150).

It is a Curzon number.

It is a congruent number.

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, 136289 + ... + 136361.

It is an arithmetic number, because the mean of its divisors is an integer number (321160).

Almost surely, 2^9951725 is an apocalyptic number.

9951725 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9951725 is a deficient number, since it is larger than the sum of its proper divisors (5463955).

9951725 is a wasteful number, since it uses less digits than its factorization.

9951725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 145 counting only the distinct ones).

The product of its digits is 28350, while the sum is 38.

The square root of 9951725 is about 3154.6354781496. The cubic root of 9951725 is about 215.0962251802.

The spelling of 9951725 in words is "nine million, nine hundred fifty-one thousand, seven hundred twenty-five".