20925212 has 24 divisors (see below), whose sum is σ = 45655680. Its totient is φ = 8152560.

The previous prime is 20925209. The next prime is 20925263. The reversal of 20925212 is 21252902.

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, 33662 + ... + 34277.

It is an arithmetic number, because the mean of its divisors is an integer number (1902320).

Almost surely, 2^20925212 is an apocalyptic number.

20925212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20925212 is an abundant number, since it is smaller than the sum of its proper divisors (24730468).

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

20925212 is a wasteful number, since it uses less digits than its factorization.

20925212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67961 (or 67959 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20925212 is about 4574.4083770472. The cubic root of 20925212 is about 275.5645131159.

The spelling of 20925212 in words is "twenty million, nine hundred twenty-five thousand, two hundred twelve".