45105252521 has 8 divisors (see below), whose sum is σ = 54261958080. Its totient is φ = 36626821488.

The previous prime is 45105252497. The next prime is 45105252539. The reversal of 45105252521 is 12525250154.

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 not a de Polignac number, because 45105252521 - 2³⁰ = 44031510697 is a prime.

It is a super-3 number, since 3×45105252521³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45102252521) 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, 169568486 + ... + 169568751.

It is an arithmetic number, because the mean of its divisors is an integer number (6782744760).

Almost surely, 2^45105252521 is an apocalyptic number.

It is an amenable number.

45105252521 is a deficient number, since it is larger than the sum of its proper divisors (9156705559).

45105252521 is a wasteful number, since it uses less digits than its factorization.

45105252521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339137263.

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 45105252521 in words is "forty-five billion, one hundred five million, two hundred fifty-two thousand, five hundred twenty-one".