51458434 has 4 divisors (see below), whose sum is σ = 77187654. Its totient is φ = 25729216.

The previous prime is 51458431. The next prime is 51458461. The reversal of 51458434 is 43485415.

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., 39727809 + 11730625 = 6303^2 + 3425^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51458434.

It is not an unprimeable number, because it can be changed into a prime (51458431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12864607 + ... + 12864610.

Almost surely, 2^51458434 is an apocalyptic number.

51458434 is a deficient number, since it is larger than the sum of its proper divisors (25729220).

51458434 is a wasteful number, since it uses less digits than its factorization.

51458434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25729219.

The product of its digits is 38400, while the sum is 34.

The square root of 51458434 is about 7173.4534221670. The cubic root of 51458434 is about 371.9508211475.

The spelling of 51458434 in words is "fifty-one million, four hundred fifty-eight thousand, four hundred thirty-four".