20375552 has 24 divisors (see below), whose sum is σ = 40745250. Its totient is φ = 10186752.

The previous prime is 20375527. The next prime is 20375569. The reversal of 20375552 is 25557302.

It can be written as a sum of positive squares in only one way, i.e., 18113536 + 2262016 = 4256^2 + 1504^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2927 + ... + 7022.

Almost surely, 2^20375552 is an apocalyptic number.

It is an amenable number.

20375552 is a deficient number, since it is larger than the sum of its proper divisors (20369698).

20375552 is an frugal number, since it uses more digits than its factorization.

20375552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9971 (or 9951 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 20375552 is about 4513.9286658076. The cubic root of 20375552 is about 273.1302450700.

The spelling of 20375552 in words is "twenty million, three hundred seventy-five thousand, five hundred fifty-two".