51899412 has 24 divisors (see below), whose sum is σ = 127472800. Its totient is φ = 16389216.

The previous prime is 51899411. The next prime is 51899443. The reversal of 51899412 is 21499815.

51899412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51899411) 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, 113587 + ... + 114042.

Almost surely, 2^51899412 is an apocalyptic number.

It is an amenable number.

51899412 is an abundant number, since it is smaller than the sum of its proper divisors (75573388).

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

51899412 is a wasteful number, since it uses less digits than its factorization.

51899412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227655 (or 227653 counting only the distinct ones).

The product of its digits is 25920, while the sum is 39.

The square root of 51899412 is about 7204.1246518921. The cubic root of 51899412 is about 373.0102899264.

The spelling of 51899412 in words is "fifty-one million, eight hundred ninety-nine thousand, four hundred twelve".