51521462 has 16 divisors (see below), whose sum is σ = 78262800. Its totient is φ = 25436160.

The previous prime is 51521443. The next prime is 51521467. The reversal of 51521462 is 26412515.

51521462 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51521462² = 5308922093234888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51521467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66614 + ... + 67382.

It is an arithmetic number, because the mean of its divisors is an integer number (4891425).

Almost surely, 2^51521462 is an apocalyptic number.

51521462 is a deficient number, since it is larger than the sum of its proper divisors (26741338).

51521462 is a wasteful number, since it uses less digits than its factorization.

51521462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151.

The product of its digits is 2400, while the sum is 26.

The square root of 51521462 is about 7177.8452198414. The cubic root of 51521462 is about 372.1026184309.

Adding to 51521462 its reverse (26412515), we get a palindrome (77933977).

The spelling of 51521462 in words is "fifty-one million, five hundred twenty-one thousand, four hundred sixty-two".