51126558 has 16 divisors (see below), whose sum is σ = 116860800. Its totient is φ = 14607576.

The previous prime is 51126557. The next prime is 51126571. The reversal of 51126558 is 85562115.

It is a super-2 number, since 2×51126558² = 5227849865854728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51126557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608608 + ... + 608691.

It is an arithmetic number, because the mean of its divisors is an integer number (7303800).

Almost surely, 2^51126558 is an apocalyptic number.

51126558 is an abundant number, since it is smaller than the sum of its proper divisors (65734242).

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

51126558 is a wasteful number, since it uses less digits than its factorization.

51126558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217311.

The product of its digits is 12000, while the sum is 33.

The square root of 51126558 is about 7150.2837705926. The cubic root of 51126558 is about 371.1494761221.

The spelling of 51126558 in words is "fifty-one million, one hundred twenty-six thousand, five hundred fifty-eight".