45500421 has 16 divisors (see below), whose sum is σ = 64765440. Its totient is φ = 28329840.

The previous prime is 45500419. The next prime is 45500423. The reversal of 45500421 is 12400554.

It is an interprime number because it is at equal distance from previous prime (45500419) and next prime (45500423).

It is not a de Polignac number, because 45500421 - 2¹ = 45500419 is a prime.

It is a super-2 number, since 2×45500421² = 4140576622354482, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45500423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1575 + ... + 9668.

It is an arithmetic number, because the mean of its divisors is an integer number (4047840).

Almost surely, 2^45500421 is an apocalyptic number.

It is an amenable number.

45500421 is a deficient number, since it is larger than the sum of its proper divisors (19265019).

45500421 is a wasteful number, since it uses less digits than its factorization.

45500421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11336.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 45500421 is about 6745.3999881401. The cubic root of 45500421 is about 357.0029501753.

Adding to 45500421 its reverse (12400554), we get a palindrome (57900975).

The spelling of 45500421 in words is "forty-five million, five hundred thousand, four hundred twenty-one".