51535422 has 12 divisors (see below), whose sum is σ = 111660120. Its totient is φ = 17178468.

The previous prime is 51535411. The next prime is 51535441. The reversal of 51535422 is 22453515.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1431522 + ... + 1431557.

It is an arithmetic number, because the mean of its divisors is an integer number (9305010).

Almost surely, 2^51535422 is an apocalyptic number.

51535422 is an abundant number, since it is smaller than the sum of its proper divisors (60124698).

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

51535422 is a wasteful number, since it uses less digits than its factorization.

51535422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863087 (or 2863084 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 51535422 is about 7178.8175906621. The cubic root of 51535422 is about 372.1362230898.

Adding to 51535422 its reverse (22453515), we get a palindrome (73988937).

It can be divided in two parts, 515 and 35422, that added together give a cube (35937 = 33³).

The spelling of 51535422 in words is "fifty-one million, five hundred thirty-five thousand, four hundred twenty-two".