45520001 has 4 divisors (see below), whose sum is σ = 46199472. Its totient is φ = 44840532.

The previous prime is 45519989. The next prime is 45520019. The reversal of 45520001 is 10002554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10002554 = 2 ⋅5001277.

It is a cyclic number.

It is not a de Polignac number, because 45520001 - 2¹⁴ = 45503617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45520021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339635 + ... + 339768.

It is an arithmetic number, because the mean of its divisors is an integer number (11549868).

Almost surely, 2^45520001 is an apocalyptic number.

It is an amenable number.

45520001 is a deficient number, since it is larger than the sum of its proper divisors (679471).

45520001 is an equidigital number, since it uses as much as digits as its factorization.

45520001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679470.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 45520001 is about 6746.8511914818. The cubic root of 45520001 is about 357.0541520116.

Adding to 45520001 its reverse (10002554), we get a palindrome (55522555).

The spelling of 45520001 in words is "forty-five million, five hundred twenty thousand, one".