51692790 has 32 divisors (see below), whose sum is σ = 128342880. Its totient is φ = 13309184.

The previous prime is 51692789. The next prime is 51692827. The reversal of 51692790 is 9729615.

51692790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28839 + ... + 30578.

It is an arithmetic number, because the mean of its divisors is an integer number (4010715).

Almost surely, 2^51692790 is an apocalyptic number.

51692790 is an abundant number, since it is smaller than the sum of its proper divisors (76650090).

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

51692790 is a wasteful number, since it uses less digits than its factorization.

51692790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59456.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 51692790 is about 7189.7698155087. The cubic root of 51692790 is about 372.5146218905.

The spelling of 51692790 in words is "fifty-one million, six hundred ninety-two thousand, seven hundred ninety".