6461503 has 4 divisors (see below), whose sum is σ = 6571080. Its totient is φ = 6351928.

The previous prime is 6461471. The next prime is 6461509. The reversal of 6461503 is 3051646.

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

It is a cyclic number.

It is not a de Polignac number, because 6461503 - 2⁵ = 6461471 is a prime.

It is a Duffinian number.

6461503 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6461509) 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, 54700 + ... + 54817.

It is an arithmetic number, because the mean of its divisors is an integer number (1642770).

Almost surely, 2^6461503 is an apocalyptic number.

6461503 is a deficient number, since it is larger than the sum of its proper divisors (109577).

6461503 is a wasteful number, since it uses less digits than its factorization.

6461503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109576.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 6461503 is about 2541.9486619521. The cubic root of 6461503 is about 186.2563909343.

The spelling of 6461503 in words is "six million, four hundred sixty-one thousand, five hundred three".