45255730521 has 8 divisors (see below), whose sum is σ = 60537525664. Its totient is φ = 30072211200.

The previous prime is 45255730517. The next prime is 45255730567. The reversal of 45255730521 is 12503755254.

45255730521 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 not a de Polignac number, because 45255730521 - 2² = 45255730517 is a prime.

It is a super-2 number, since 2×45255730521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45255730521.

It is not an unprimeable number, because it can be changed into a prime (45255730321) 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, 24567880 + ... + 24569721.

It is an arithmetic number, because the mean of its divisors is an integer number (7567190708).

Almost surely, 2^45255730521 is an apocalyptic number.

It is an amenable number.

45255730521 is a deficient number, since it is larger than the sum of its proper divisors (15281795143).

45255730521 is a wasteful number, since it uses less digits than its factorization.

45255730521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49137911.

The product of its (nonzero) digits is 210000, while the sum is 39.

The spelling of 45255730521 in words is "forty-five billion, two hundred fifty-five million, seven hundred thirty thousand, five hundred twenty-one".