45512121252 has 24 divisors (see below), whose sum is σ = 114363792256. Its totient is φ = 14003729568.

The previous prime is 45512121241. The next prime is 45512121253. The reversal of 45512121252 is 25212121554.

It is not an unprimeable number, because it can be changed into a prime (45512121253) 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, 145872028 + ... + 145872339.

Almost surely, 2^45512121252 is an apocalyptic number.

It is an amenable number.

45512121252 is an abundant number, since it is smaller than the sum of its proper divisors (68851671004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45512121252 is a wasteful number, since it uses less digits than its factorization.

45512121252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291744387 (or 291744385 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The spelling of 45512121252 in words is "forty-five billion, five hundred twelve million, one hundred twenty-one thousand, two hundred fifty-two".