20552862 has 16 divisors (see below), whose sum is σ = 44842752. Its totient is φ = 6228120.

The previous prime is 20552843. The next prime is 20552879. The reversal of 20552862 is 26825502.

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, 155638 + ... + 155769.

It is an arithmetic number, because the mean of its divisors is an integer number (2802672).

Almost surely, 2^20552862 is an apocalyptic number.

20552862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20552862 is an abundant number, since it is smaller than the sum of its proper divisors (24289890).

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

20552862 is a wasteful number, since it uses less digits than its factorization.

20552862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311423.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 20552862 is about 4533.5264419655. The cubic root of 20552862 is about 273.9202264792.

The spelling of 20552862 in words is "twenty million, five hundred fifty-two thousand, eight hundred sixty-two".