51198576 has 80 divisors (see below), whose sum is σ = 155406720. Its totient is φ = 14319360.

The previous prime is 51198569. The next prime is 51198613. The reversal of 51198576 is 67589115.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3135 + ... + 10593.

It is an arithmetic number, because the mean of its divisors is an integer number (1942584).

Almost surely, 2^51198576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51198576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77703360).

51198576 is an abundant number, since it is smaller than the sum of its proper divisors (104208144).

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

51198576 is a wasteful number, since it uses less digits than its factorization.

51198576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7494 (or 7488 counting only the distinct ones).

The product of its digits is 75600, while the sum is 42.

The square root of 51198576 is about 7155.3180222824. The cubic root of 51198576 is about 371.3236641454.

It can be divided in two parts, 5119 and 8576, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 51198576 in words is "fifty-one million, one hundred ninety-eight thousand, five hundred seventy-six".