20553374 has 16 divisors (see below), whose sum is σ = 32886000. Its totient is φ = 9600384.

The previous prime is 20553361. The next prime is 20553433. The reversal of 20553374 is 47335502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2552 + ... + 6900.

It is an arithmetic number, because the mean of its divisors is an integer number (2055375).

Almost surely, 2^20553374 is an apocalyptic number.

20553374 is a deficient number, since it is larger than the sum of its proper divisors (12332626).

20553374 is a wasteful number, since it uses less digits than its factorization.

20553374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 20553374 is about 4533.5829097966. The cubic root of 20553374 is about 273.9225010365.

Adding to 20553374 its reverse (47335502), we get a palindrome (67888876).

The spelling of 20553374 in words is "twenty million, five hundred fifty-three thousand, three hundred seventy-four".