2515281 has 8 divisors (see below), whose sum is σ = 3396480. Its totient is φ = 1655472.

The previous prime is 2515273. The next prime is 2515283. The reversal of 2515281 is 1825152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2515281 - 2³ = 2515273 is a prime.

It is a super-2 number, since 2×2515281² = 12653277017922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2515283) 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, 5070 + ... + 5543.

It is an arithmetic number, because the mean of its divisors is an integer number (424560).

2^2515281 is an apocalyptic number.

It is an amenable number.

2515281 is a deficient number, since it is larger than the sum of its proper divisors (881199).

2515281 is a wasteful number, since it uses less digits than its factorization.

2515281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10695.

The product of its digits is 800, while the sum is 24.

The square root of 2515281 is about 1585.9637448567. The cubic root of 2515281 is about 135.9968460918.

The spelling of 2515281 in words is "two million, five hundred fifteen thousand, two hundred eighty-one".