51435164 has 24 divisors (see below), whose sum is σ = 99016176. Its totient is φ = 23377200.

The previous prime is 51435161. The next prime is 51435179. The reversal of 51435164 is 46153415.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51435161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494 + ... + 10154.

It is an arithmetic number, because the mean of its divisors is an integer number (4125674).

Almost surely, 2^51435164 is an apocalyptic number.

It is an amenable number.

51435164 is a deficient number, since it is larger than the sum of its proper divisors (47581012).

51435164 is a wasteful number, since it uses less digits than its factorization.

51435164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9698 (or 9674 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 51435164 is about 7171.8312863592. The cubic root of 51435164 is about 371.8947461115.

Adding to 51435164 its reverse (46153415), we get a palindrome (97588579).

It can be divided in two parts, 514351 and 64, that added together give a palindrome (514415).

The spelling of 51435164 in words is "fifty-one million, four hundred thirty-five thousand, one hundred sixty-four".