1513825 has 12 divisors (see below), whose sum is σ = 1976560. Its totient is φ = 1146960.

The previous prime is 1513819. The next prime is 1513859. The reversal of 1513825 is 5283151.

It is a happy number.

It is not a de Polignac number, because 1513825 - 2¹⁷ = 1382753 is a prime.

It is a super-2 number, since 2×1513825² = 4583332261250, which contains 22 as substring.

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 1513825.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1119 + ... + 2068.

2^1513825 is an apocalyptic number.

It is an amenable number.

1513825 is a deficient number, since it is larger than the sum of its proper divisors (462735).

1513825 is a wasteful number, since it uses less digits than its factorization.

1513825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216 (or 3211 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 1513825 is about 1230.3759588028. The cubic root of 1513825 is about 114.8220309631.

Adding to 1513825 its reverse (5283151), we get a palindrome (6796976).

The spelling of 1513825 in words is "one million, five hundred thirteen thousand, eight hundred twenty-five".