4026551 has 4 divisors (see below), whose sum is σ = 4077600. Its totient is φ = 3975504.

The previous prime is 4026527. The next prime is 4026571. The reversal of 4026551 is 1556204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4026551 is a prime.

It is a super-2 number, since 2×4026551² = 32426225911202, 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 (4026511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25406 + ... + 25563.

It is an arithmetic number, because the mean of its divisors is an integer number (1019400).

Almost surely, 2^4026551 is an apocalyptic number.

4026551 is a deficient number, since it is larger than the sum of its proper divisors (51049).

4026551 is an equidigital number, since it uses as much as digits as its factorization.

4026551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51048.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 4026551 is about 2006.6267714750. The cubic root of 4026551 is about 159.0905566449.

The spelling of 4026551 in words is "four million, twenty-six thousand, five hundred fifty-one".