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3125887057 is a prime number
BaseRepresentation
bin1011101001010001…
…0100000001010001
322001211220111220201
42322110110001101
522400211341212
61234102335201
7140314413226
oct27224240121
98054814821
103125887057
111364533237
12732a2a501
133aa7bcc17
1421921594d
1513465db57
hexba514051

3125887057 has 2 divisors, whose sum is σ = 3125887058. Its totient is φ = 3125887056.

The previous prime is 3125887043. The next prime is 3125887073. The reversal of 3125887057 is 7507885213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2519939601 + 605947456 = 50199^2 + 24616^2 .

It is a cyclic number.

It is not a de Polignac number, because 3125887057 - 219 = 3125362769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3125886998 and 3125887016.

It is not a weakly prime, because it can be changed into another prime (3125887007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562943528 + 1562943529.

It is an arithmetic number, because the mean of its divisors is an integer number (1562943529).

Almost surely, 23125887057 is an apocalyptic number.

It is an amenable number.

3125887057 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125887057 is an equidigital number, since it uses as much as digits as its factorization.

3125887057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 3125887057 is about 55909.6329535439. The cubic root of 3125887057 is about 1462.1471904409.

The spelling of 3125887057 in words is "three billion, one hundred twenty-five million, eight hundred eighty-seven thousand, fifty-seven".