2521827 has 32 divisors (see below), whose sum is σ = 4661760. Its totient is φ = 1308960.

The previous prime is 2521823. The next prime is 2521829. The reversal of 2521827 is 7281252.

It is not a de Polignac number, because 2521827 - 2² = 2521823 is a prime.

It is a super-2 number, since 2×2521827² = 12719222835858, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2521827.

It is not an unprimeable number, because it can be changed into a prime (2521823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1473 + ... + 2685.

It is an arithmetic number, because the mean of its divisors is an integer number (145680).

2^2521827 is an apocalyptic number.

2521827 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2521827 is a deficient number, since it is larger than the sum of its proper divisors (2139933).

2521827 is a wasteful number, since it uses less digits than its factorization.

2521827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1234 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 2521827 is about 1588.0261332862. The cubic root of 2521827 is about 136.1147208199.

The spelling of 2521827 in words is "two million, five hundred twenty-one thousand, eight hundred twenty-seven".