2048551 has 4 divisors (see below), whose sum is σ = 2169072. Its totient is φ = 1928032.

The previous prime is 2048537. The next prime is 2048569. The reversal of 2048551 is 1558402.

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 2048551 - 2¹⁷ = 1917479 is a prime.

It is a super-2 number, since 2×2048551² = 8393122399202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2048521) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 60235 + ... + 60268.

It is an arithmetic number, because the mean of its divisors is an integer number (542268).

2^2048551 is an apocalyptic number.

2048551 is a deficient number, since it is larger than the sum of its proper divisors (120521).

2048551 is a wasteful number, since it uses less digits than its factorization.

2048551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120520.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 2048551 is about 1431.2760041306. The cubic root of 2048551 is about 127.0034719120.

It can be divided in two parts, 20485 and 51, that multiplied together give a triangular number (1044735 = T₁₄₄₅).

The spelling of 2048551 in words is "two million, forty-eight thousand, five hundred fifty-one".