2487551 has 4 divisors (see below), whose sum is σ = 2713704. Its totient is φ = 2261400.

The previous prime is 2487523. The next prime is 2487557. The reversal of 2487551 is 1557842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2487551 - 2¹⁸ = 2225407 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2487557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113060 + ... + 113081.

It is an arithmetic number, because the mean of its divisors is an integer number (678426).

2^2487551 is an apocalyptic number.

2487551 is a deficient number, since it is larger than the sum of its proper divisors (226153).

2487551 is a wasteful number, since it uses less digits than its factorization.

2487551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226152.

The product of its digits is 11200, while the sum is 32.

The square root of 2487551 is about 1577.1971975628. The cubic root of 2487551 is about 135.4952272934.

The spelling of 2487551 in words is "two million, four hundred eighty-seven thousand, five hundred fifty-one".