51772507 has 2 divisors, whose sum is σ = 51772508. Its totient is φ = 51772506.

The previous prime is 51772459. The next prime is 51772529. The reversal of 51772507 is 70527715.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51772507 is a prime.

It is not a weakly prime, because it can be changed into another prime (51772577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25886253 + 25886254.

It is an arithmetic number, because the mean of its divisors is an integer number (25886254).

Almost surely, 2^51772507 is an apocalyptic number.

51772507 is a deficient number, since it is larger than the sum of its proper divisors (1).

51772507 is an equidigital number, since it uses as much as digits as its factorization.

51772507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17150, while the sum is 34.

The square root of 51772507 is about 7195.3114595548. The cubic root of 51772507 is about 372.7060121938.

The spelling of 51772507 in words is "fifty-one million, seven hundred seventy-two thousand, five hundred seven".