51419722 has 4 divisors (see below), whose sum is σ = 77129586. Its totient is φ = 25709860.

The previous prime is 51419717. The next prime is 51419729. The reversal of 51419722 is 22791415.

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., 50140561 + 1279161 = 7081^2 + 1131^2 .

It is not an unprimeable number, because it can be changed into a prime (51419729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12854929 + ... + 12854932.

Almost surely, 2^51419722 is an apocalyptic number.

51419722 is a deficient number, since it is larger than the sum of its proper divisors (25709864).

51419722 is a wasteful number, since it uses less digits than its factorization.

51419722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25709863.

The product of its digits is 5040, while the sum is 31.

The square root of 51419722 is about 7170.7546325335. The cubic root of 51419722 is about 371.8575253140.

The spelling of 51419722 in words is "fifty-one million, four hundred nineteen thousand, seven hundred twenty-two".