20214552 has 32 divisors (see below), whose sum is σ = 51252480. Its totient is φ = 6642720.

The previous prime is 20214541. The next prime is 20214553. The reversal of 20214552 is 25541202.

It is a happy number.

It is a super-2 number, since 2×20214552² = 817256225121408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4228 + ... + 7635.

It is an arithmetic number, because the mean of its divisors is an integer number (1601640).

Almost surely, 2^20214552 is an apocalyptic number.

It is an amenable number.

20214552 is an abundant number, since it is smaller than the sum of its proper divisors (31037928).

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

20214552 is a wasteful number, since it uses less digits than its factorization.

20214552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11943 (or 11939 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 20214552 is about 4496.0596081458. The cubic root of 20214552 is about 272.4089508682.

Adding to 20214552 its reverse (25541202), we get a palindrome (45755754).

The spelling of 20214552 in words is "twenty million, two hundred fourteen thousand, five hundred fifty-two".