51416522 has 4 divisors (see below), whose sum is σ = 77124786. Its totient is φ = 25708260.

The previous prime is 51416513. The next prime is 51416531. The reversal of 51416522 is 22561415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22561415 = 5 ⋅4512283.

It is an interprime number because it is at equal distance from previous prime (51416513) and next prime (51416531).

It can be written as a sum of positive squares in only one way, i.e., 29691601 + 21724921 = 5449^2 + 4661^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51416491 and 51416500.

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, 12854129 + ... + 12854132.

Almost surely, 2^51416522 is an apocalyptic number.

51416522 is a deficient number, since it is larger than the sum of its proper divisors (25708264).

51416522 is a wasteful number, since it uses less digits than its factorization.

51416522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25708263.

The product of its digits is 2400, while the sum is 26.

The square root of 51416522 is about 7170.5315005235. The cubic root of 51416522 is about 371.8498112261.

Adding to 51416522 its reverse (22561415), we get a palindrome (73977937).

The spelling of 51416522 in words is "fifty-one million, four hundred sixteen thousand, five hundred twenty-two".