51190802 has 32 divisors (see below), whose sum is σ = 85300992. Its totient is φ = 22892544.

The previous prime is 51190729. The next prime is 51190817. The reversal of 51190802 is 20809115.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 199058 + ... + 199314.

It is an arithmetic number, because the mean of its divisors is an integer number (2665656).

Almost surely, 2^51190802 is an apocalyptic number.

51190802 is a deficient number, since it is larger than the sum of its proper divisors (34110190).

51190802 is a wasteful number, since it uses less digits than its factorization.

51190802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 51190802 is about 7154.7747693411. The cubic root of 51190802 is about 371.3048692458.

Adding to 51190802 its reverse (20809115), we get a palindrome (71999917).

The spelling of 51190802 in words is "fifty-one million, one hundred ninety thousand, eight hundred two".