45624541 has 4 divisors (see below), whose sum is σ = 46028412. Its totient is φ = 45220672.

The previous prime is 45624539. The next prime is 45624559. The reversal of 45624541 is 14542654.

It is a happy number.

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 18020025 + 27604516 = 4245^2 + 5254^2 .

It is a cyclic number.

It is not a de Polignac number, because 45624541 - 2¹ = 45624539 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (45624581) 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, 201766 + ... + 201991.

It is an arithmetic number, because the mean of its divisors is an integer number (11507103).

Almost surely, 2^45624541 is an apocalyptic number.

It is an amenable number.

45624541 is a deficient number, since it is larger than the sum of its proper divisors (403871).

45624541 is a wasteful number, since it uses less digits than its factorization.

45624541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403870.

The product of its digits is 19200, while the sum is 31.

The square root of 45624541 is about 6754.5940662633. The cubic root of 45624541 is about 357.3272766626.

The spelling of 45624541 in words is "forty-five million, six hundred twenty-four thousand, five hundred forty-one".