45505451 has 8 divisors (see below), whose sum is σ = 46363104. Its totient is φ = 44651520.

The previous prime is 45505409. The next prime is 45505459. The reversal of 45505451 is 15450554.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45505451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45505459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38891 + ... + 40043.

It is an arithmetic number, because the mean of its divisors is an integer number (5795388).

Almost surely, 2^45505451 is an apocalyptic number.

45505451 is a deficient number, since it is larger than the sum of its proper divisors (857653).

45505451 is a wasteful number, since it uses less digits than its factorization.

45505451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 45505451 is about 6745.7728245176. The cubic root of 45505451 is about 357.0161050622.

It can be divided in two parts, 4550 and 5451, that added together give a palindrome (10001).

The spelling of 45505451 in words is "forty-five million, five hundred five thousand, four hundred fifty-one".