6742501 has 4 divisors (see below), whose sum is σ = 6869772. Its totient is φ = 6615232.

The previous prime is 6742493. The next prime is 6742507. The reversal of 6742501 is 1052476.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2802276 + 3940225 = 1674^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 6742501 - 2³ = 6742493 is a prime.

It is a super-2 number, since 2×6742501² = 90922639470002, which contains 22 as substring.

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 (6742507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63556 + ... + 63661.

It is an arithmetic number, because the mean of its divisors is an integer number (1717443).

Almost surely, 2^6742501 is an apocalyptic number.

It is an amenable number.

6742501 is a deficient number, since it is larger than the sum of its proper divisors (127271).

6742501 is a wasteful number, since it uses less digits than its factorization.

6742501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127270.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 6742501 is about 2596.6326270768. The cubic root of 6742501 is about 188.9181452697.

Subtracting from 6742501 its sum of digits (25), we obtain a palindrome (6742476).

Adding to 6742501 its reverse (1052476), we get a palindrome (7794977).

The spelling of 6742501 in words is "six million, seven hundred forty-two thousand, five hundred one".