51196810 has 32 divisors (see below), whose sum is σ = 108721152. Its totient is φ = 16986240.

The previous prime is 51196801. The next prime is 51196813. The reversal of 51196810 is 1869115.

It is a super-2 number, since 2×51196810² = 5242226708352200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (51196813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9627 + ... + 13966.

It is an arithmetic number, because the mean of its divisors is an integer number (3397536).

Almost surely, 2^51196810 is an apocalyptic number.

51196810 is an abundant number, since it is smaller than the sum of its proper divisors (57524342).

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

51196810 is a wasteful number, since it uses less digits than its factorization.

51196810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23638.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 51196810 is about 7155.1946165007. The cubic root of 51196810 is about 371.3193947224.

The spelling of 51196810 in words is "fifty-one million, one hundred ninety-six thousand, eight hundred ten".