45210002521 has 8 divisors (see below), whose sum is σ = 47881662624. Its totient is φ = 42539703360.

The previous prime is 45210002479. The next prime is 45210002531. The reversal of 45210002521 is 12520001254.

45210002521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45210002521 - 2¹⁷ = 45209871449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45210002492 and 45210002501.

It is not an unprimeable number, because it can be changed into a prime (45210002531) 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, 271435 + ... + 405088.

It is an arithmetic number, because the mean of its divisors is an integer number (5985207828).

Almost surely, 2^45210002521 is an apocalyptic number.

It is an amenable number.

45210002521 is a deficient number, since it is larger than the sum of its proper divisors (2671660103).

45210002521 is a wasteful number, since it uses less digits than its factorization.

45210002521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680471.

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 45210002521 its reverse (12520001254), we get a palindrome (57730003775).

The spelling of 45210002521 in words is "forty-five billion, two hundred ten million, two thousand, five hundred twenty-one".