2551486 has 16 divisors (see below), whose sum is σ = 4515840. Its totient is φ = 1058040.

The previous prime is 2551481. The next prime is 2551499. The reversal of 2551486 is 6841552.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2506 + ... + 3373.

It is an arithmetic number, because the mean of its divisors is an integer number (282240).

2^2551486 is an apocalyptic number.

2551486 is a deficient number, since it is larger than the sum of its proper divisors (1964354).

2551486 is a wasteful number, since it uses less digits than its factorization.

2551486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919.

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

The square root of 2551486 is about 1597.3371591496. The cubic root of 2551486 is about 136.6462538089.

It can be divided in two parts, 25514 and 86, that added together give a square (25600 = 160²).

The spelling of 2551486 in words is "two million, five hundred fifty-one thousand, four hundred eighty-six".