51535412 has 12 divisors (see below), whose sum is σ = 90295296. Its totient is φ = 25736760.

The previous prime is 51535411. The next prime is 51535441. The reversal of 51535412 is 21453515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51535411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3764 + ... + 10827.

It is an arithmetic number, because the mean of its divisors is an integer number (7524608).

Almost surely, 2^51535412 is an apocalyptic number.

It is an amenable number.

51535412 is a deficient number, since it is larger than the sum of its proper divisors (38759884).

51535412 is a wasteful number, since it uses less digits than its factorization.

51535412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15478 (or 15476 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 51535412 is about 7178.8168941686. The cubic root of 51535412 is about 372.1361990198.

Adding to 51535412 its reverse (21453515), we get a palindrome (72988927).

The spelling of 51535412 in words is "fifty-one million, five hundred thirty-five thousand, four hundred twelve".