45506278 has 16 divisors (see below), whose sum is σ = 70774560. Its totient is φ = 21918400.

The previous prime is 45506267. The next prime is 45506281. The reversal of 45506278 is 87260554.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43623 + ... + 44653.

It is an arithmetic number, because the mean of its divisors is an integer number (4423410).

Almost surely, 2^45506278 is an apocalyptic number.

45506278 is a deficient number, since it is larger than the sum of its proper divisors (25268282).

45506278 is a wasteful number, since it uses less digits than its factorization.

45506278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 45506278 is about 6745.8341218859. The cubic root of 45506278 is about 357.0182678106.

The spelling of 45506278 in words is "forty-five million, five hundred six thousand, two hundred seventy-eight".