45155025 has 18 divisors (see below), whose sum is σ = 80878070. Its totient is φ = 24082560.

The previous prime is 45155021. The next prime is 45155041. The reversal of 45155025 is 52055154.

It can be written as a sum of positive squares in 3 ways, for example, as 2108304 + 43046721 = 1452^2 + 6561^2 .

It is not a de Polignac number, because 45155025 - 2² = 45155021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45155025.

It is not an unprimeable number, because it can be changed into a prime (45155021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 100120 + ... + 100569.

Almost surely, 2^45155025 is an apocalyptic number.

45155025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45155025 is a deficient number, since it is larger than the sum of its proper divisors (35723045).

45155025 is a wasteful number, since it uses less digits than its factorization.

45155025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200705 (or 200697 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 45155025 is about 6719.7488792365. The cubic root of 45155025 is about 356.0973122224.

The spelling of 45155025 in words is "forty-five million, one hundred fifty-five thousand, twenty-five".