4551415155252 has 96 divisors (see below), whose sum is σ = 13611709117440. Its totient is φ = 1288250995680.

The previous prime is 4551415155251. The next prime is 4551415155271. The reversal of 4551415155252 is 2525515141554.

It is a happy number.

4551415155252 is a `hidden beast` number, since 4 + 5 + 5 + 1 + 41 + 5 + 1 + 552 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 4551415155198 and 4551415155207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4551415155251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28051774 + ... + 28213557.

It is an arithmetic number, because the mean of its divisors is an integer number (141788636640).

Almost surely, 2^{4551415155252} is an apocalyptic number.

4551415155252 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4551415155252 is an abundant number, since it is smaller than the sum of its proper divisors (9060293962188).

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

4551415155252 is a wasteful number, since it uses less digits than its factorization.

4551415155252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56265458 (or 56265450 counting only the distinct ones).

The product of its digits is 1000000, while the sum is 45.

The spelling of 4551415155252 in words is "four trillion, five hundred fifty-one billion, four hundred fifteen million, one hundred fifty-five thousand, two hundred fifty-two".