51520475335 has 64 divisors (see below), whose sum is σ = 77110963200. Its totient is φ = 32243097600.

The previous prime is 51520475329. The next prime is 51520475399. The reversal of 51520475335 is 53357402515.

It is a happy number.

It is not a de Polignac number, because 51520475335 - 2⁹ = 51520474823 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9466215 + ... + 9471655.

It is an arithmetic number, because the mean of its divisors is an integer number (1204858800).

Almost surely, 2^51520475335 is an apocalyptic number.

51520475335 is a deficient number, since it is larger than the sum of its proper divisors (25590487865).

51520475335 is a wasteful number, since it uses less digits than its factorization.

51520475335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992.

The product of its (nonzero) digits is 315000, while the sum is 40.

The spelling of 51520475335 in words is "fifty-one billion, five hundred twenty million, four hundred seventy-five thousand, three hundred thirty-five".