20153000 has 64 divisors (see below), whose sum is σ = 53913600. Its totient is φ = 6907200.

The previous prime is 20152969. The next prime is 20153009. The reversal of 20153000 is 35102.

It is a super-2 number, since 2×20153000² = 812286818000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20153009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5561 + ... + 8439.

It is an arithmetic number, because the mean of its divisors is an integer number (842400).

Almost surely, 2^20153000 is an apocalyptic number.

20153000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20153000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26956800).

20153000 is an abundant number, since it is smaller than the sum of its proper divisors (33760600).

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

20153000 is a wasteful number, since it uses less digits than its factorization.

20153000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907 (or 2893 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 20153000 is about 4489.2092844954. The cubic root of 20153000 is about 272.1321805651.

Adding to 20153000 its reverse (35102), we get a palindrome (20188102).

The spelling of 20153000 in words is "twenty million, one hundred fifty-three thousand".