51492829 has 4 divisors (see below), whose sum is σ = 53153920. Its totient is φ = 49831740.

The previous prime is 51492817. The next prime is 51492851. The reversal of 51492829 is 92829415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51492829 - 2⁵ = 51492797 is a prime.

It is a super-2 number, since 2×51492829² = 5303022876846482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51492791 and 51492800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51492029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830499 + ... + 830560.

It is an arithmetic number, because the mean of its divisors is an integer number (13288480).

Almost surely, 2^51492829 is an apocalyptic number.

It is an amenable number.

51492829 is a deficient number, since it is larger than the sum of its proper divisors (1661091).

51492829 is a wasteful number, since it uses less digits than its factorization.

51492829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661090.

The product of its digits is 51840, while the sum is 40.

The square root of 51492829 is about 7175.8504025655. The cubic root of 51492829 is about 372.0336737737.

The spelling of 51492829 in words is "fifty-one million, four hundred ninety-two thousand, eight hundred twenty-nine".