1864525 has 12 divisors (see below), whose sum is σ = 2490292. Its totient is φ = 1376640.

The previous prime is 1864517. The next prime is 1864529. The reversal of 1864525 is 5254681.

1864525 = 261² + 262² + ... + 285².

1864525 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 6 ways, for example, as 743044 + 1121481 = 862^2 + 1059^2 .

It is not a de Polignac number, because 1864525 - 2³ = 1864517 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1864529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2544 + ... + 3193.

2^1864525 is an apocalyptic number.

It is an amenable number.

1864525 is a deficient number, since it is larger than the sum of its proper divisors (625767).

1864525 is a wasteful number, since it uses less digits than its factorization.

1864525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760 (or 5755 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 1864525 is about 1365.4761074438. The cubic root of 1864525 is about 123.0805430125.

The spelling of 1864525 in words is "one million, eight hundred sixty-four thousand, five hundred twenty-five".