51113561030 has 64 divisors (see below), whose sum is σ = 107490941568. Its totient is φ = 17137474560.

The previous prime is 51113561029. The next prime is 51113561033. The reversal of 51113561030 is 3016531115.

It is a super-2 number, since 2×51113561030² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51113561033) 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, 704114 + ... + 773306.

It is an arithmetic number, because the mean of its divisors is an integer number (1679545962).

Almost surely, 2^51113561030 is an apocalyptic number.

51113561030 is an abundant number, since it is smaller than the sum of its proper divisors (56377380538).

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

51113561030 is a wasteful number, since it uses less digits than its factorization.

51113561030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69441.

The product of its (nonzero) digits is 1350, while the sum is 26.

The spelling of 51113561030 in words is "fifty-one billion, one hundred thirteen million, five hundred sixty-one thousand, thirty".