51100757 has 2 divisors, whose sum is σ = 51100758. Its totient is φ = 51100756.

The previous prime is 51100729. The next prime is 51100769. The reversal of 51100757 is 75700115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46799281 + 4301476 = 6841^2 + 2074^2 .

It is a cyclic number.

It is not a de Polignac number, because 51100757 - 2⁸ = 51100501 is a prime.

It is a super-5 number, since 5×51100757⁵ (a number of 40 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51100787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25550378 + 25550379.

It is an arithmetic number, because the mean of its divisors is an integer number (25550379).

Almost surely, 2^51100757 is an apocalyptic number.

It is an amenable number.

51100757 is a deficient number, since it is larger than the sum of its proper divisors (1).

51100757 is an equidigital number, since it uses as much as digits as its factorization.

51100757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1225, while the sum is 26.

The square root of 51100757 is about 7148.4793487846. The cubic root of 51100757 is about 371.0870321315.

The spelling of 51100757 in words is "fifty-one million, one hundred thousand, seven hundred fifty-seven".