51436002 has 24 divisors (see below), whose sum is σ = 108575856. Its totient is φ = 16242264.

The previous prime is 51435997. The next prime is 51436003. The reversal of 51436002 is 20063415.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51436002.

It is not an unprimeable number, because it can be changed into a prime (51436003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9708 + ... + 14039.

It is an arithmetic number, because the mean of its divisors is an integer number (4523994).

Almost surely, 2^51436002 is an apocalyptic number.

51436002 is an abundant number, since it is smaller than the sum of its proper divisors (57139854).

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

51436002 is a wasteful number, since it uses less digits than its factorization.

51436002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23790 (or 23771 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 51436002 is about 7171.8897091352. The cubic root of 51436002 is about 371.8967657811.

Adding to 51436002 its reverse (20063415), we get a palindrome (71499417).

The spelling of 51436002 in words is "fifty-one million, four hundred thirty-six thousand, two".