45035521 has 4 divisors (see below), whose sum is σ = 46588500. Its totient is φ = 43482544.

The previous prime is 45035509. The next prime is 45035537. The reversal of 45035521 is 12553054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12553054 = 2 ⋅6276527.

It can be written as a sum of positive squares in 2 ways, for example, as 29322225 + 15713296 = 5415^2 + 3964^2 .

It is a cyclic number.

It is not a de Polignac number, because 45035521 - 2¹³ = 45027329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45035561) 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, 776446 + ... + 776503.

It is an arithmetic number, because the mean of its divisors is an integer number (11647125).

Almost surely, 2^45035521 is an apocalyptic number.

It is an amenable number.

45035521 is a deficient number, since it is larger than the sum of its proper divisors (1552979).

45035521 is a wasteful number, since it uses less digits than its factorization.

45035521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552978.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 45035521 is about 6710.8509892561. The cubic root of 45035521 is about 355.7828942846.

Adding to 45035521 its reverse (12553054), we get a palindrome (57588575).

The spelling of 45035521 in words is "forty-five million, thirty-five thousand, five hundred twenty-one".