20951052 has 12 divisors (see below), whose sum is σ = 48885816. Its totient is φ = 6983680.

The previous prime is 20951027. The next prime is 20951083. The reversal of 20951052 is 25015902.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872949 + ... + 872972.

It is an arithmetic number, because the mean of its divisors is an integer number (4073818).

Almost surely, 2^20951052 is an apocalyptic number.

It is an amenable number.

20951052 is an abundant number, since it is smaller than the sum of its proper divisors (27934764).

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

20951052 is a wasteful number, since it uses less digits than its factorization.

20951052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745928 (or 1745926 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 20951052 is about 4577.2319145964. The cubic root of 20951052 is about 275.6778956075.

Adding to 20951052 its reverse (25015902), we get a palindrome (45966954).

The spelling of 20951052 in words is "twenty million, nine hundred fifty-one thousand, fifty-two".