20552378 has 32 divisors (see below), whose sum is σ = 38648448. Its totient is φ = 7963200.

The previous prime is 20552359. The next prime is 20552417. The reversal of 20552378 is 87325502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48608 + ... + 49028.

It is an arithmetic number, because the mean of its divisors is an integer number (1207764).

Almost surely, 2^20552378 is an apocalyptic number.

20552378 is a deficient number, since it is larger than the sum of its proper divisors (18096070).

20552378 is a wasteful number, since it uses less digits than its factorization.

20552378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 20552378 is about 4533.4730615721. The cubic root of 20552378 is about 273.9180762769.

The spelling of 20552378 in words is "twenty million, five hundred fifty-two thousand, three hundred seventy-eight".