51269412 has 48 divisors (see below), whose sum is σ = 124178432. Its totient is φ = 16446240.

The previous prime is 51269411. The next prime is 51269417. The reversal of 51269412 is 21496215.

It is a self number, because there is not a number n which added to its sum of digits gives 51269412.

It is not an unprimeable number, because it can be changed into a prime (51269411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105033 + ... + 105519.

Almost surely, 2^51269412 is an apocalyptic number.

It is an amenable number.

51269412 is an abundant number, since it is smaller than the sum of its proper divisors (72909020).

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

51269412 is a wasteful number, since it uses less digits than its factorization.

51269412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 806 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 51269412 is about 7160.2661961690. The cubic root of 51269412 is about 371.4948340220.

It can be divided in two parts, 51269 and 412, that added together give a triangular number (51681 = T₃₂₁).

The spelling of 51269412 in words is "fifty-one million, two hundred sixty-nine thousand, four hundred twelve".