51472061 has 4 divisors (see below), whose sum is σ = 51508800. Its totient is φ = 51435324.

The previous prime is 51472051. The next prime is 51472067. The reversal of 51472061 is 16027415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51472061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51472061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51472067) 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, 16181 + ... + 19098.

It is an arithmetic number, because the mean of its divisors is an integer number (12877200).

Almost surely, 2^51472061 is an apocalyptic number.

It is an amenable number.

51472061 is a deficient number, since it is larger than the sum of its proper divisors (36739).

51472061 is a wasteful number, since it uses less digits than its factorization.

51472061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36738.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 51472061 is about 7174.4031807531. The cubic root of 51472061 is about 371.9836510524.

Adding to 51472061 its reverse (16027415), we get a palindrome (67499476).

The spelling of 51472061 in words is "fifty-one million, four hundred seventy-two thousand, sixty-one".