51497241 has 8 divisors (see below), whose sum is σ = 68925120. Its totient is φ = 34200432.

The previous prime is 51497213. The next prime is 51497263. The reversal of 51497241 is 14279415.

It is a happy number.

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

It is not a de Polignac number, because 51497241 - 2⁷ = 51497113 is a prime.

It is a super-2 number, since 2×51497241² = 5303931661224162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51497041) 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, 31846 + ... + 33423.

It is an arithmetic number, because the mean of its divisors is an integer number (8615640).

Almost surely, 2^51497241 is an apocalyptic number.

It is an amenable number.

51497241 is a deficient number, since it is larger than the sum of its proper divisors (17427879).

51497241 is a wasteful number, since it uses less digits than its factorization.

51497241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65535.

The product of its digits is 10080, while the sum is 33.

The square root of 51497241 is about 7176.1578159904. The cubic root of 51497241 is about 372.0442989794.

The spelling of 51497241 in words is "fifty-one million, four hundred ninety-seven thousand, two hundred forty-one".