51416472 has 16 divisors (see below), whose sum is σ = 128541240. Its totient is φ = 17138816.

The previous prime is 51416471. The next prime is 51416503. The reversal of 51416472 is 27461415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51416471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071153 + ... + 1071200.

Almost surely, 2^51416472 is an apocalyptic number.

It is an amenable number.

51416472 is an abundant number, since it is smaller than the sum of its proper divisors (77124768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51416472 is a wasteful number, since it uses less digits than its factorization.

51416472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142362 (or 2142358 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 51416472 is about 7170.5280140308. The cubic root of 51416472 is about 371.8496906910.

Adding to 51416472 its reverse (27461415), we get a palindrome (78877887).

The spelling of 51416472 in words is "fifty-one million, four hundred sixteen thousand, four hundred seventy-two".