15262225 has 48 divisors (see below), whose sum is σ = 22855680. Its totient is φ = 9979200.

The previous prime is 15262223. The next prime is 15262229. The reversal of 15262225 is 52226251.

It is a happy number.

It is not a de Polignac number, because 15262225 - 2¹ = 15262223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 15262225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15262223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120112 + ... + 120238.

It is an arithmetic number, because the mean of its divisors is an integer number (476160).

Almost surely, 2^15262225 is an apocalyptic number.

It is an amenable number.

15262225 is a deficient number, since it is larger than the sum of its proper divisors (7593455).

15262225 is a wasteful number, since it uses less digits than its factorization.

15262225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 185 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 15262225 is about 3906.6897752445. The cubic root of 15262225 is about 248.0500300124.

Adding to 15262225 its reverse (52226251), we get a palindrome (67488476).

The spelling of 15262225 in words is "fifteen million, two hundred sixty-two thousand, two hundred twenty-five".