75551057 has 2 divisors, whose sum is σ = 75551058. Its totient is φ = 75551056.

The previous prime is 75551053. The next prime is 75551083. The reversal of 75551057 is 75015557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75186241 + 364816 = 8671^2 + 604^2 .

It is a cyclic number.

It is not a de Polignac number, because 75551057 - 2² = 75551053 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75551051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37775528 + 37775529.

It is an arithmetic number, because the mean of its divisors is an integer number (37775529).

Almost surely, 2^75551057 is an apocalyptic number.

It is an amenable number.

75551057 is a deficient number, since it is larger than the sum of its proper divisors (1).

75551057 is an equidigital number, since it uses as much as digits as its factorization.

75551057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30625, while the sum is 35.

The square root of 75551057 is about 8692.0111021558. The cubic root of 75551057 is about 422.7466566221.

The spelling of 75551057 in words is "seventy-five million, five hundred fifty-one thousand, fifty-seven".