45661275 has 72 divisors (see below), whose sum is σ = 94011840. Its totient is φ = 20952000.

The previous prime is 45661267. The next prime is 45661387. The reversal of 45661275 is 57216654.

It is a happy number.

It is not a de Polignac number, because 45661275 - 2³ = 45661267 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 46540 + ... + 47510.

It is an arithmetic number, because the mean of its divisors is an integer number (1305720).

Almost surely, 2^45661275 is an apocalyptic number.

45661275 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45661275 is an abundant number, since it is smaller than the sum of its proper divisors (48350565).

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

45661275 is a wasteful number, since it uses less digits than its factorization.

45661275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1009 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 45661275 is about 6757.3127055065. The cubic root of 45661275 is about 357.4231500582.

The spelling of 45661275 in words is "forty-five million, six hundred sixty-one thousand, two hundred seventy-five".