51197058 has 96 divisors (see below), whose sum is σ = 131788800. Its totient is φ = 14191200.

The previous prime is 51197033. The next prime is 51197063. The reversal of 51197058 is 85079115.

51197058 is a `hidden beast` number, since 511 + 97 + 0 + 58 = 666.

It is a super-2 number, since 2×51197058² = 5242277495710728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116403 + ... + 116841.

It is an arithmetic number, because the mean of its divisors is an integer number (1372800).

Almost surely, 2^51197058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51197058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65894400).

51197058 is an abundant number, since it is smaller than the sum of its proper divisors (80591742).

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

51197058 is a wasteful number, since it uses less digits than its factorization.

51197058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The square root of 51197058 is about 7155.2119465464. The cubic root of 51197058 is about 371.3199942849.

The spelling of 51197058 in words is "fifty-one million, one hundred ninety-seven thousand, fifty-eight".