20153080 has 16 divisors (see below), whose sum is σ = 45344520. Its totient is φ = 8061216.

The previous prime is 20153051. The next prime is 20153093. The reversal of 20153080 is 8035102.

It is a happy number.

It is a super-2 number, since 2×20153080² = 812293266972800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251874 + ... + 251953.

Almost surely, 2^20153080 is an apocalyptic number.

20153080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20153080 is an abundant number, since it is smaller than the sum of its proper divisors (25191440).

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

20153080 is a wasteful number, since it uses less digits than its factorization.

20153080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503838 (or 503834 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20153080 is about 4489.2181947417. The cubic root of 20153080 is about 272.1325406528.

Adding to 20153080 its reverse (8035102), we get a palindrome (28188182).

The spelling of 20153080 in words is "twenty million, one hundred fifty-three thousand, eighty".