51529497 has 8 divisors (see below), whose sum is σ = 70381920. Its totient is φ = 33515040.

The previous prime is 51529483. The next prime is 51529507. The reversal of 51529497 is 79492515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51529497 - 2⁸ = 51529241 is a prime.

It is a super-2 number, since 2×51529497² = 5310578122146018, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (51529427) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 209347 + ... + 209592.

It is an arithmetic number, because the mean of its divisors is an integer number (8797740).

Almost surely, 2^51529497 is an apocalyptic number.

It is an amenable number.

51529497 is a deficient number, since it is larger than the sum of its proper divisors (18852423).

51529497 is a wasteful number, since it uses less digits than its factorization.

51529497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418983.

The product of its digits is 113400, while the sum is 42.

The square root of 51529497 is about 7178.4049063841. The cubic root of 51529497 is about 372.1219611088.

The spelling of 51529497 in words is "fifty-one million, five hundred twenty-nine thousand, four hundred ninety-seven".