2530791 has 16 divisors (see below), whose sum is σ = 3808000. Its totient is φ = 1660824.

The previous prime is 2530783. The next prime is 2530793. The reversal of 2530791 is 1970352.

It is not a de Polignac number, because 2530791 - 2³ = 2530783 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110 + ... + 2508.

It is an arithmetic number, because the mean of its divisors is an integer number (238000).

2^2530791 is an apocalyptic number.

2530791 is a deficient number, since it is larger than the sum of its proper divisors (1277209).

2530791 is a wasteful number, since it uses less digits than its factorization.

2530791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2530791 is about 1590.8460013465. The cubic root of 2530791 is about 136.2758063511.

It can be divided in two parts, 2530 and 791, that added together give a triangular number (3321 = T₈₁).

The spelling of 2530791 in words is "two million, five hundred thirty thousand, seven hundred ninety-one".