51452012 has 24 divisors (see below), whose sum is σ = 95558400. Its totient is φ = 24187856.

The previous prime is 51451999. The next prime is 51452017. The reversal of 51452012 is 21025415.

It is not an unprimeable number, because it can be changed into a prime (51452017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689 + ... + 10167.

It is an arithmetic number, because the mean of its divisors is an integer number (3981600).

Almost surely, 2^51452012 is an apocalyptic number.

It is an amenable number.

51452012 is a deficient number, since it is larger than the sum of its proper divisors (44106388).

51452012 is a wasteful number, since it uses less digits than its factorization.

51452012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9565 (or 9563 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 51452012 is about 7173.0057855825. The cubic root of 51452012 is about 371.9353473798.

Adding to 51452012 its reverse (21025415), we get a palindrome (72477427).

The spelling of 51452012 in words is "fifty-one million, four hundred fifty-two thousand, twelve".