20274552 has 48 divisors (see below), whose sum is σ = 55495440. Its totient is φ = 6686208.

The previous prime is 20274533. The next prime is 20274559. The reversal of 20274552 is 25547202.

20274552 is a `hidden beast` number, since 202 + 7 + 455 + 2 = 666.

It is a super-2 number, since 2×20274552² = 822114917601408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20274559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5533 + ... + 8435.

It is an arithmetic number, because the mean of its divisors is an integer number (1156155).

Almost surely, 2^20274552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20274552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27747720).

20274552 is an abundant number, since it is smaller than the sum of its proper divisors (35220888).

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

20274552 is a wasteful number, since it uses less digits than its factorization.

20274552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012 (or 3005 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 20274552 is about 4502.7271736138. The cubic root of 20274552 is about 272.6782023231.

The spelling of 20274552 in words is "twenty million, two hundred seventy-four thousand, five hundred fifty-two".