45220554 has 48 divisors (see below), whose sum is σ = 100986912. Its totient is φ = 14617824.

The previous prime is 45220543. The next prime is 45220573. The reversal of 45220554 is 45502254.

45220554 is a `hidden beast` number, since 452 + 205 + 5 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101857 + ... + 102299.

It is an arithmetic number, because the mean of its divisors is an integer number (2103894).

Almost surely, 2^45220554 is an apocalyptic number.

45220554 is an abundant number, since it is smaller than the sum of its proper divisors (55766358).

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

45220554 is a wasteful number, since it uses less digits than its factorization.

45220554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 45220554 is about 6724.6229634084. The cubic root of 45220554 is about 356.2694851762.

The spelling of 45220554 in words is "forty-five million, two hundred twenty thousand, five hundred fifty-four".