51011105610 has 64 divisors (see below), whose sum is σ = 127148486400. Its totient is φ = 13086577152.

The previous prime is 51011105609. The next prime is 51011105617. The reversal of 51011105610 is 1650111015.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51011105617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159390 + ... + 356969.

It is an arithmetic number, because the mean of its divisors is an integer number (1986695100).

Almost surely, 2^51011105610 is an apocalyptic number.

51011105610 is an abundant number, since it is smaller than the sum of its proper divisors (76137380790).

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

51011105610 is a wasteful number, since it uses less digits than its factorization.

51011105610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516495.

The product of its (nonzero) digits is 150, while the sum is 21.

Adding to 51011105610 its reverse (1650111015), we get a palindrome (52661216625).

The spelling of 51011105610 in words is "fifty-one billion, eleven million, one hundred five thousand, six hundred ten".