51187058 has 24 divisors (see below), whose sum is σ = 85409028. Its totient is φ = 22980672.

The previous prime is 51187057. The next prime is 51187061. The reversal of 51187058 is 85078115.

It can be written as a sum of positive squares in 6 ways, for example, as 15342889 + 35844169 = 3917^2 + 5987^2 .

It is a super-2 number, since 2×51187058² = 5240229813390728, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51187057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10460 + ... + 14552.

Almost surely, 2^51187058 is an apocalyptic number.

51187058 is a deficient number, since it is larger than the sum of its proper divisors (34221970).

51187058 is a wasteful number, since it uses less digits than its factorization.

51187058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158 (or 4145 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 35.

The square root of 51187058 is about 7154.5131211006. The cubic root of 51187058 is about 371.2958168427.

The spelling of 51187058 in words is "fifty-one million, one hundred eighty-seven thousand, fifty-eight".