45555001 has 4 divisors (see below), whose sum is σ = 45569104. Its totient is φ = 45540900.

The previous prime is 45554987. The next prime is 45555023. The reversal of 45555001 is 10055554.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45555001 is a prime.

It is a super-2 number, since 2×45555001² = 4150516232220002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45555071) 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, 466 + ... + 9556.

It is an arithmetic number, because the mean of its divisors is an integer number (11392276).

Almost surely, 2^45555001 is an apocalyptic number.

It is an amenable number.

45555001 is a deficient number, since it is larger than the sum of its proper divisors (14103).

45555001 is an equidigital number, since it uses as much as digits as its factorization.

45555001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14102.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 45555001 is about 6749.4444956604. Note that the first 4 decimals coincide. The cubic root of 45555001 is about 357.1456406869.

The spelling of 45555001 in words is "forty-five million, five hundred fifty-five thousand, one".