51413497 has 4 divisors (see below), whose sum is σ = 51788916. Its totient is φ = 51038080.

The previous prime is 51413489. The next prime is 51413503. The reversal of 51413497 is 79431415.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32307856 + 19105641 = 5684^2 + 4371^2 .

It is a cyclic number.

It is not a de Polignac number, because 51413497 - 2³ = 51413489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51419497) 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 3 ways as a sum of consecutive naturals, for example, 187504 + ... + 187777.

It is an arithmetic number, because the mean of its divisors is an integer number (12947229).

Almost surely, 2^51413497 is an apocalyptic number.

It is an amenable number.

51413497 is a deficient number, since it is larger than the sum of its proper divisors (375419).

51413497 is a wasteful number, since it uses less digits than its factorization.

51413497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375418.

The product of its digits is 15120, while the sum is 34.

The square root of 51413497 is about 7170.3205646610. The cubic root of 51413497 is about 371.8425187081.

The spelling of 51413497 in words is "fifty-one million, four hundred thirteen thousand, four hundred ninety-seven".