45421505 has 8 divisors (see below), whose sum is σ = 55665792. Its totient is φ = 35563888.

The previous prime is 45421487. The next prime is 45421507. The reversal of 45421505 is 50512454.

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

It is a cyclic number.

It is not a de Polignac number, because 45421505 - 2¹⁴ = 45405121 is a prime.

It is a super-2 number, since 2×45421505² = 4126226232930050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45421507) 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, 96407 + ... + 96876.

It is an arithmetic number, because the mean of its divisors is an integer number (6958224).

Almost surely, 2^45421505 is an apocalyptic number.

It is an amenable number.

45421505 is a deficient number, since it is larger than the sum of its proper divisors (10244287).

45421505 is a wasteful number, since it uses less digits than its factorization.

45421505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193335.

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

The square root of 45421505 is about 6739.5478334974. The cubic root of 45421505 is about 356.7964352478.

Adding to 45421505 its reverse (50512454), we get a palindrome (95933959).

The spelling of 45421505 in words is "forty-five million, four hundred twenty-one thousand, five hundred five".