51787794 has 32 divisors (see below), whose sum is σ = 110615040. Its totient is φ = 16128000.

The previous prime is 51787793. The next prime is 51787807. The reversal of 51787794 is 49778715.

It is not an unprimeable number, because it can be changed into a prime (51787793) 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, 594 + ... + 10194.

It is an arithmetic number, because the mean of its divisors is an integer number (3456720).

Almost surely, 2^51787794 is an apocalyptic number.

51787794 is an abundant number, since it is smaller than the sum of its proper divisors (58827246).

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

51787794 is a wasteful number, since it uses less digits than its factorization.

51787794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9666.

The product of its digits is 493920, while the sum is 48.

The square root of 51787794 is about 7196.3736701203. The cubic root of 51787794 is about 372.7426918684.

The spelling of 51787794 in words is "fifty-one million, seven hundred eighty-seven thousand, seven hundred ninety-four".