45452501 has 4 divisors (see below), whose sum is σ = 46075212. Its totient is φ = 44829792.

The previous prime is 45452497. The next prime is 45452507. The reversal of 45452501 is 10525454.

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 15760900 + 29691601 = 3970^2 + 5449^2 .

It is a cyclic number.

It is not a de Polignac number, because 45452501 - 2² = 45452497 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45452507) 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, 311246 + ... + 311391.

It is an arithmetic number, because the mean of its divisors is an integer number (11518803).

Almost surely, 2^45452501 is an apocalyptic number.

It is an amenable number.

45452501 is a deficient number, since it is larger than the sum of its proper divisors (622711).

45452501 is an equidigital number, since it uses as much as digits as its factorization.

45452501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622710.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 45452501 is about 6741.8470021204. The cubic root of 45452501 is about 356.8775770448.

Adding to 45452501 its reverse (10525454), we get a palindrome (55977955).

The spelling of 45452501 in words is "forty-five million, four hundred fifty-two thousand, five hundred one".