51749092 has 6 divisors (see below), whose sum is σ = 90560918. Its totient is φ = 25874544.

The previous prime is 51749069. The next prime is 51749101. The reversal of 51749092 is 29094715.

It can be written as a sum of positive squares in only one way, i.e., 32878756 + 18870336 = 5734^2 + 4344^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6468633 + ... + 6468640.

Almost surely, 2^51749092 is an apocalyptic number.

It is an amenable number.

51749092 is a deficient number, since it is larger than the sum of its proper divisors (38811826).

51749092 is a wasteful number, since it uses less digits than its factorization.

51749092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12937277 (or 12937275 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 51749092 is about 7193.6841743296. The cubic root of 51749092 is about 372.6498161692.

The spelling of 51749092 in words is "fifty-one million, seven hundred forty-nine thousand, ninety-two".