45551628 has 36 divisors (see below), whose sum is σ = 117037648. Its totient is φ = 14934240.

The previous prime is 45551621. The next prime is 45551629. The reversal of 45551628 is 82615554.

45551628 is a `hidden beast` number, since 45 + 551 + 62 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 45551592 and 45551601.

It is not an unprimeable number, because it can be changed into a prime (45551621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8176 + ... + 12567.

Almost surely, 2^45551628 is an apocalyptic number.

It is an amenable number.

45551628 is an abundant number, since it is smaller than the sum of its proper divisors (71486020).

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

45551628 is a wasteful number, since it uses less digits than its factorization.

45551628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20814 (or 20809 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 45551628 is about 6749.1946186193. The cubic root of 45551628 is about 357.1368258334.

The spelling of 45551628 in words is "forty-five million, five hundred fifty-one thousand, six hundred twenty-eight".