7211625 has 16 divisors (see below), whose sum is σ = 12000768. Its totient is φ = 3846000.

The previous prime is 7211599. The next prime is 7211639. The reversal of 7211625 is 5261127.

It is not a de Polignac number, because 7211625 - 2⁵ = 7211593 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7211595 and 7211604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9241 + ... + 9990.

It is an arithmetic number, because the mean of its divisors is an integer number (750048).

Almost surely, 2^7211625 is an apocalyptic number.

7211625 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7211625 is a deficient number, since it is larger than the sum of its proper divisors (4789143).

7211625 is a wasteful number, since it uses less digits than its factorization.

7211625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19249 (or 19239 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 7211625 is about 2685.4468901842. The cubic root of 7211625 is about 193.2017452444.

It can be divided in two parts, 721 and 1625, that added together give a triangular number (2346 = T₆₈).

The spelling of 7211625 in words is "seven million, two hundred eleven thousand, six hundred twenty-five".