2051501 has 4 divisors (see below), whose sum is σ = 2066400. Its totient is φ = 2036604.

The previous prime is 2051479. The next prime is 2051507. The reversal of 2051501 is 1051502.

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 2051501 - 2⁶ = 2051437 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051507) 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, 7241 + ... + 7518.

It is an arithmetic number, because the mean of its divisors is an integer number (516600).

2^2051501 is an apocalyptic number.

It is an amenable number.

2051501 is a deficient number, since it is larger than the sum of its proper divisors (14899).

2051501 is a wasteful number, since it uses less digits than its factorization.

2051501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14898.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 2051501 is about 1432.3061823507. The cubic root of 2051501 is about 127.0644061274.

Subtracting from 2051501 its reverse (1051502), we obtain a palindrome (999999).

It can be divided in two parts, 2051 and 501, that added together give a palindrome (2552).

The spelling of 2051501 in words is "two million, fifty-one thousand, five hundred one".