2526021 has 12 divisors (see below), whose sum is σ = 3807648. Its totient is φ = 1610664.

The previous prime is 2525989. The next prime is 2526023. The reversal of 2526021 is 1206252.

It is not a de Polignac number, because 2526021 - 2⁵ = 2525989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2525985 and 2526003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2526023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5895 + ... + 6308.

It is an arithmetic number, because the mean of its divisors is an integer number (317304).

2^2526021 is an apocalyptic number.

It is an amenable number.

2526021 is a deficient number, since it is larger than the sum of its proper divisors (1281627).

2526021 is a wasteful number, since it uses less digits than its factorization.

2526021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12232 (or 12229 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2526021 is about 1589.3460919510. The cubic root of 2526021 is about 136.1901355842.

It can be divided in two parts, 25260 and 21, that added together give a square (25281 = 159²).

The spelling of 2526021 in words is "two million, five hundred twenty-six thousand, twenty-one".