20153208 has 32 divisors (see below), whose sum is σ = 51096960. Its totient is φ = 6622560.

The previous prime is 20153207. The next prime is 20153209. The reversal of 20153208 is 80235102.

It is an interprime number because it is at equal distance from previous prime (20153207) and next prime (20153209).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20153201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4210 + ... + 7617.

It is an arithmetic number, because the mean of its divisors is an integer number (1596780).

Almost surely, 2^20153208 is an apocalyptic number.

It is an amenable number.

20153208 is an abundant number, since it is smaller than the sum of its proper divisors (30943752).

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

20153208 is a wasteful number, since it uses less digits than its factorization.

20153208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11907 (or 11903 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 20153208 is about 4489.2324510990. The cubic root of 20153208 is about 272.1331167913.

The spelling of 20153208 in words is "twenty million, one hundred fifty-three thousand, two hundred eight".