1251525 has 48 divisors (see below), whose sum is σ = 2374848. Its totient is φ = 576000.

The previous prime is 1251463. The next prime is 1251527. The reversal of 1251525 is 5251521.

It is not a de Polignac number, because 1251525 - 2⁶ = 1251461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251527) 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, 30505 + ... + 30545.

It is an arithmetic number, because the mean of its divisors is an integer number (49476).

2^1251525 is an apocalyptic number.

1251525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1251525 is a deficient number, since it is larger than the sum of its proper divisors (1123323).

1251525 is a wasteful number, since it uses less digits than its factorization.

1251525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 97 counting only the distinct ones).

The product of its digits is 500, while the sum is 21.

The square root of 1251525 is about 1118.7157815996. The cubic root of 1251525 is about 107.7655235376.

The spelling of 1251525 in words is "one million, two hundred fifty-one thousand, five hundred twenty-five".