2272725 has 96 divisors (see below), whose sum is σ = 5277440. Its totient is φ = 933120.

The previous prime is 2272691. The next prime is 2272727. The reversal of 2272725 is 5272722.

It is a happy number.

It is not a de Polignac number, because 2272725 - 2⁷ = 2272597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2⁵ + 2¹³ + 7⁵ + 2¹⁵ + 7⁶ + 2²¹ + 5³ .

It is a Curzon number.

2272725 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272727) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 61407 + ... + 61443.

2^2272725 is an apocalyptic number.

2272725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2272725 is an abundant number, since it is smaller than the sum of its proper divisors (3004715).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2272725 is a wasteful number, since it uses less digits than its factorization.

2272725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 65 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 2272725 is about 1507.5559691103. Note that the first 3 decimals coincide. The cubic root of 2272725 is about 131.4767508909.

The spelling of 2272725 in words is "two million, two hundred seventy-two thousand, seven hundred twenty-five".