51544212 has 12 divisors (see below), whose sum is σ = 120269856. Its totient is φ = 17181400.

The previous prime is 51544211. The next prime is 51544217. The reversal of 51544212 is 21244515.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51544211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2147664 + ... + 2147687.

It is an arithmetic number, because the mean of its divisors is an integer number (10022488).

Almost surely, 2^51544212 is an apocalyptic number.

It is an amenable number.

51544212 is an abundant number, since it is smaller than the sum of its proper divisors (68725644).

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

51544212 is a wasteful number, since it uses less digits than its factorization.

51544212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295358 (or 4295356 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 51544212 is about 7179.4297823713. The cubic root of 51544212 is about 372.1573793568.

Adding to 51544212 its reverse (21244515), we get a palindrome (72788727).

The spelling of 51544212 in words is "fifty-one million, five hundred forty-four thousand, two hundred twelve".