51612434 has 4 divisors (see below), whose sum is σ = 77418654. Its totient is φ = 25806216.

The previous prime is 51612409. The next prime is 51612461. The reversal of 51612434 is 43421615.

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., 44930209 + 6682225 = 6703^2 + 2585^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12903107 + ... + 12903110.

Almost surely, 2^51612434 is an apocalyptic number.

51612434 is a deficient number, since it is larger than the sum of its proper divisors (25806220).

51612434 is a wasteful number, since it uses less digits than its factorization.

51612434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25806219.

The product of its digits is 2880, while the sum is 26.

The square root of 51612434 is about 7184.1794242627. The cubic root of 51612434 is about 372.3214981881.

The spelling of 51612434 in words is "fifty-one million, six hundred twelve thousand, four hundred thirty-four".