7545506 has 4 divisors (see below), whose sum is σ = 11318262. Its totient is φ = 3772752.

The previous prime is 7545497. The next prime is 7545529. The reversal of 7545506 is 6055457.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6055457 = 37 ⋅163661.

It can be written as a sum of positive squares in only one way, i.e., 6838225 + 707281 = 2615^2 + 841^2 .

It is a super-3 number, since 3×7545506³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1886375 + ... + 1886378.

Almost surely, 2^7545506 is an apocalyptic number.

7545506 is a deficient number, since it is larger than the sum of its proper divisors (3772756).

7545506 is a wasteful number, since it uses less digits than its factorization.

7545506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772755.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 7545506 is about 2746.9084440512. The cubic root of 7545506 is about 196.1384728811.

The spelling of 7545506 in words is "seven million, five hundred forty-five thousand, five hundred six".