51110561010 has 64 divisors (see below), whose sum is σ = 123474643200. Its totient is φ = 13539778560.

The previous prime is 51110561003. The next prime is 51110561011. The reversal of 51110561010 is 1016501115.

It is a happy number.

It is a super-2 number, since 2×51110561010² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51110561011) 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, 4011450 + ... + 4024170.

It is an arithmetic number, because the mean of its divisors is an integer number (1929291300).

Almost surely, 2^51110561010 is an apocalyptic number.

51110561010 is an abundant number, since it is smaller than the sum of its proper divisors (72364082190).

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

51110561010 is a wasteful number, since it uses less digits than its factorization.

51110561010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13603.

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

The spelling of 51110561010 in words is "fifty-one billion, one hundred ten million, five hundred sixty-one thousand, ten".