51110022 has 16 divisors (see below), whose sum is σ = 102957120. Its totient is φ = 16913832.

The previous prime is 51110011. The next prime is 51110023. The reversal of 51110022 is 22001115.

It is a super-2 number, since 2×51110022² = 5224468697680968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51110023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29808 + ... + 31475.

It is an arithmetic number, because the mean of its divisors is an integer number (6434820).

Almost surely, 2^51110022 is an apocalyptic number.

51110022 is an abundant number, since it is smaller than the sum of its proper divisors (51847098).

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

51110022 is a wasteful number, since it uses less digits than its factorization.

51110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61427.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 51110022 is about 7149.1273593355. The cubic root of 51110022 is about 371.1094578500.

Adding to 51110022 its reverse (22001115), we get a palindrome (73111137).

The spelling of 51110022 in words is "fifty-one million, one hundred ten thousand, twenty-two".