2548791 has 24 divisors (see below), whose sum is σ = 4392960. Its totient is φ = 1392336.

The previous prime is 2548783. The next prime is 2548813. The reversal of 2548791 is 1978452.

It is not a de Polignac number, because 2548791 - 2³ = 2548783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2548751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 570 + ... + 2328.

It is an arithmetic number, because the mean of its divisors is an integer number (183040).

2^2548791 is an apocalyptic number.

2548791 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2548791 is a deficient number, since it is larger than the sum of its proper divisors (1844169).

2548791 is a wasteful number, since it uses less digits than its factorization.

2548791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1792 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 2548791 is about 1596.4933448029. The cubic root of 2548791 is about 136.5981261180.

It can be divided in two parts, 254 and 8791, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 2548791 in words is "two million, five hundred forty-eight thousand, seven hundred ninety-one".