45211550 has 24 divisors (see below), whose sum is σ = 84275856. Its totient is φ = 18045440.

The previous prime is 45211549. The next prime is 45211567. The reversal of 45211550 is 5511254.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36542 + ... + 37758.

It is an arithmetic number, because the mean of its divisors is an integer number (3511494).

Almost surely, 2^45211550 is an apocalyptic number.

45211550 is a deficient number, since it is larger than the sum of its proper divisors (39064306).

45211550 is a wasteful number, since it uses less digits than its factorization.

45211550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972 (or 1967 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 45211550 is about 6723.9534501661. The cubic root of 45211550 is about 356.2458376450.

The spelling of 45211550 in words is "forty-five million, two hundred eleven thousand, five hundred fifty".