5545537 has 4 divisors (see below), whose sum is σ = 5680836. Its totient is φ = 5410240.

The previous prime is 5545531. The next prime is 5545543. The reversal of 5545537 is 7355455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7355455 = 5 ⋅1471091.

It is an interprime number because it is at equal distance from previous prime (5545531) and next prime (5545543).

It can be written as a sum of positive squares in 2 ways, for example, as 1640961 + 3904576 = 1281^2 + 1976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5545537 is a prime.

It is an Ulam number.

It is a Duffinian number.

5545537 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5545531) 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, 67588 + ... + 67669.

It is an arithmetic number, because the mean of its divisors is an integer number (1420209).

Almost surely, 2^5545537 is an apocalyptic number.

It is an amenable number.

5545537 is a deficient number, since it is larger than the sum of its proper divisors (135299).

5545537 is a wasteful number, since it uses less digits than its factorization.

5545537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135298.

The product of its digits is 52500, while the sum is 34.

The square root of 5545537 is about 2354.8963883789. The cubic root of 5545537 is about 177.0032344308.

The spelling of 5545537 in words is "five million, five hundred forty-five thousand, five hundred thirty-seven".