1525425 has 36 divisors (see below), whose sum is σ = 2816784. Its totient is φ = 722400.

The previous prime is 1525423. The next prime is 1525471. The reversal of 1525425 is 5245251.

It is a happy number.

It is not a de Polignac number, because 1525425 - 2¹ = 1525423 is a prime.

1525425 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1525395 and 1525404.

It is not an unprimeable number, because it can be changed into a prime (1525421) 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 35 ways as a sum of consecutive naturals, for example, 35454 + ... + 35496.

It is an arithmetic number, because the mean of its divisors is an integer number (78244).

2^1525425 is an apocalyptic number.

1525425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1525425 is a deficient number, since it is larger than the sum of its proper divisors (1291359).

1525425 is a wasteful number, since it uses less digits than its factorization.

1525425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 62 counting only the distinct ones).

The product of its digits is 2000, while the sum is 24.

The square root of 1525425 is about 1235.0809690057. The cubic root of 1525425 is about 115.1145676148.

The spelling of 1525425 in words is "one million, five hundred twenty-five thousand, four hundred twenty-five".