51472511 has 2 divisors, whose sum is σ = 51472512. Its totient is φ = 51472510.

The previous prime is 51472489. The next prime is 51472523. The reversal of 51472511 is 11527415.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51472511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51472111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25736255 + 25736256.

It is an arithmetic number, because the mean of its divisors is an integer number (25736256).

Almost surely, 2^51472511 is an apocalyptic number.

51472511 is a deficient number, since it is larger than the sum of its proper divisors (1).

51472511 is an equidigital number, since it uses as much as digits as its factorization.

51472511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1400, while the sum is 26.

The square root of 51472511 is about 7174.4345421782. The cubic root of 51472511 is about 371.9847350849.

Adding to 51472511 its reverse (11527415), we get a palindrome (62999926).

The spelling of 51472511 in words is "fifty-one million, four hundred seventy-two thousand, five hundred eleven".