2645501 has 4 divisors (see below), whose sum is σ = 2690400. Its totient is φ = 2600604.

The previous prime is 2645479. The next prime is 2645507. The reversal of 2645501 is 1055462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2645501 - 2¹⁴ = 2629117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645507) 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, 22361 + ... + 22478.

It is an arithmetic number, because the mean of its divisors is an integer number (672600).

2^2645501 is an apocalyptic number.

It is an amenable number.

2645501 is a deficient number, since it is larger than the sum of its proper divisors (44899).

2645501 is an equidigital number, since it uses as much as digits as its factorization.

2645501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44898.

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

The square root of 2645501 is about 1626.4996157393. The cubic root of 2645501 is about 138.3043935526.

The spelling of 2645501 in words is "two million, six hundred forty-five thousand, five hundred one".