5645451 has 16 divisors (see below), whose sum is σ = 9056000. Its totient is φ = 3055968.

The previous prime is 5645447. The next prime is 5645473. The reversal of 5645451 is 1545465.

It is not a de Polignac number, because 5645451 - 2² = 5645447 is a prime.

It is a super-2 number, since 2×5645451² = 63742233986802, which contains 22 as substring.

It is a Duffinian number.

5645451 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5645491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6676 + ... + 7473.

It is an arithmetic number, because the mean of its divisors is an integer number (566000).

Almost surely, 2^5645451 is an apocalyptic number.

5645451 is a deficient number, since it is larger than the sum of its proper divisors (3410549).

5645451 is a wasteful number, since it uses less digits than its factorization.

5645451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14178.

The product of its digits is 12000, while the sum is 30.

The square root of 5645451 is about 2376.0157827759. The cubic root of 5645451 is about 178.0599364711.

The spelling of 5645451 in words is "five million, six hundred forty-five thousand, four hundred fifty-one".