7403225 has 6 divisors (see below), whose sum is σ = 9180030. Its totient is φ = 5922560.

The previous prime is 7403213. The next prime is 7403233. The reversal of 7403225 is 5223047.

It can be written as a sum of positive squares in 3 ways, for example, as 26569 + 7376656 = 163^2 + 2716^2 .

It is not a de Polignac number, because 7403225 - 2¹⁰ = 7402201 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 7⁸ + 4² + 0 + 3¹³ + 2¹³ + 2¹⁵ + 5⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 7403225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 148040 + ... + 148089.

It is an arithmetic number, because the mean of its divisors is an integer number (1530005).

Almost surely, 2^7403225 is an apocalyptic number.

It is an amenable number.

7403225 is a deficient number, since it is larger than the sum of its proper divisors (1776805).

7403225 is a wasteful number, since it uses less digits than its factorization.

7403225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296139 (or 296134 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 7403225 is about 2720.8868039667. The cubic root of 7403225 is about 194.8978206733.

The spelling of 7403225 in words is "seven million, four hundred three thousand, two hundred twenty-five".