51369436 has 12 divisors (see below), whose sum is σ = 91238728. Its totient is φ = 25301232.

The previous prime is 51369413. The next prime is 51369457. The reversal of 51369436 is 63496315.

It is a junction number, because it is equal to n+sod(n) for n = 51369395 and 51369404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95571 + ... + 96106.

Almost surely, 2^51369436 is an apocalyptic number.

It is an amenable number.

51369436 is a deficient number, since it is larger than the sum of its proper divisors (39869292).

51369436 is a wasteful number, since it uses less digits than its factorization.

51369436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191748 (or 191746 counting only the distinct ones).

The product of its digits is 58320, while the sum is 37.

The square root of 51369436 is about 7167.2474493351. The cubic root of 51369436 is about 371.7362662215.

The spelling of 51369436 in words is "fifty-one million, three hundred sixty-nine thousand, four hundred thirty-six".