20553192 has 48 divisors (see below), whose sum is σ = 60727680. Its totient is φ = 6228000.

The previous prime is 20553179. The next prime is 20553227. The reversal of 20553192 is 29135502.

20553192 is a `hidden beast` number, since 20 + 553 + 1 + 92 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12184 + ... + 13767.

It is an arithmetic number, because the mean of its divisors is an integer number (1265160).

Almost surely, 2^20553192 is an apocalyptic number.

20553192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20553192 is an abundant number, since it is smaller than the sum of its proper divisors (40174488).

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

20553192 is a wasteful number, since it uses less digits than its factorization.

20553192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25974 (or 25967 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 20553192 is about 4533.5628373278. The cubic root of 20553192 is about 273.9216925068.

Adding to 20553192 its reverse (29135502), we get a palindrome (49688694).

The spelling of 20553192 in words is "twenty million, five hundred fifty-three thousand, one hundred ninety-two".