51535232402 has 32 divisors (see below), whose sum is σ = 78805343232. Its totient is φ = 25272853264.

The previous prime is 51535232393. The next prime is 51535232423. The reversal of 51535232402 is 20423253515.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9396353 + ... + 9401835.

It is an arithmetic number, because the mean of its divisors is an integer number (2462666976).

Almost surely, 2^51535232402 is an apocalyptic number.

51535232402 is a deficient number, since it is larger than the sum of its proper divisors (27270110830).

51535232402 is a wasteful number, since it uses less digits than its factorization.

51535232402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6022.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 51535232402 its reverse (20423253515), we get a palindrome (71958485917).

The spelling of 51535232402 in words is "fifty-one billion, five hundred thirty-five million, two hundred thirty-two thousand, four hundred two".