51413458 has 4 divisors (see below), whose sum is σ = 77120190. Its totient is φ = 25706728.

The previous prime is 51413429. The next prime is 51413473. The reversal of 51413458 is 85431415.

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

It can be written as a sum of positive squares in only one way, i.e., 40870449 + 10543009 = 6393^2 + 3247^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12853363 + ... + 12853366.

Almost surely, 2^51413458 is an apocalyptic number.

51413458 is a deficient number, since it is larger than the sum of its proper divisors (25706732).

51413458 is a wasteful number, since it uses less digits than its factorization.

51413458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25706731.

The product of its digits is 9600, while the sum is 31.

The square root of 51413458 is about 7170.3178451168. The cubic root of 51413458 is about 371.8424246870.

The spelling of 51413458 in words is "fifty-one million, four hundred thirteen thousand, four hundred fifty-eight".