287503425 has 60 divisors (see below), whose sum is σ = 581014896. Its totient is φ = 139384800.

The previous prime is 287503417. The next prime is 287503481. The reversal of 287503425 is 524305782.

It is not a de Polignac number, because 287503425 - 2³ = 287503417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 287503425.

It is an unprimeable number.

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 59 ways as a sum of consecutive naturals, for example, 15822 + ... + 28728.

Almost surely, 2^287503425 is an apocalyptic number.

287503425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

287503425 is an abundant number, since it is smaller than the sum of its proper divisors (293511471).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

287503425 is a wasteful number, since it uses less digits than its factorization.

287503425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12940 (or 12926 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 287503425 is about 16955.9259552523. The cubic root of 287503425 is about 660.0056817693.

The spelling of 287503425 in words is "two hundred eighty-seven million, five hundred three thousand, four hundred twenty-five".