20195502 has 8 divisors (see below), whose sum is σ = 40391016. Its totient is φ = 6731832.

The previous prime is 20195489. The next prime is 20195503. The reversal of 20195502 is 20559102.

It is a sphenic number, since it is the product of 3 distinct primes.

20195502 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20195503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682953 + ... + 1682964.

It is an arithmetic number, because the mean of its divisors is an integer number (5048877).

Almost surely, 2^20195502 is an apocalyptic number.

20195502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20195502 is a wasteful number, since it uses less digits than its factorization.

20195502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365922.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 20195502 is about 4493.9405870572. The cubic root of 20195502 is about 272.3233521122.

It can be divided in two parts, 201 and 95502, that added together give a triangular number (95703 = T₄₃₇).

The spelling of 20195502 in words is "twenty million, one hundred ninety-five thousand, five hundred two".