1525275 has 18 divisors (see below), whose sum is σ = 2732340. Its totient is φ = 813360.

The previous prime is 1525273. The next prime is 1525297. The reversal of 1525275 is 5725251.

It is a happy number.

It is not a de Polignac number, because 1525275 - 2¹ = 1525273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1525273) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 3165 + ... + 3614.

2^1525275 is an apocalyptic number.

1525275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1525275 is a deficient number, since it is larger than the sum of its proper divisors (1207065).

1525275 is a wasteful number, since it uses less digits than its factorization.

1525275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6795 (or 6787 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 1525275 is about 1235.0202427491. The cubic root of 1525275 is about 115.1107942945.

The spelling of 1525275 in words is "one million, five hundred twenty-five thousand, two hundred seventy-five".