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75052525 = 523002101
BaseRepresentation
bin1000111100100…
…11010111101101
312020020001201011
410132103113231
5123203140100
611240345221
71600636012
oct436232755
9166201634
1075052525
1139402089
1221175211
131271a4a2
149d79709
1568c7bba
hex47935ed

75052525 has 6 divisors (see below), whose sum is σ = 93065162. Its totient is φ = 60042000.

The previous prime is 75052517. The next prime is 75052553. The reversal of 75052525 is 52525057.

It can be written as a sum of positive squares in 3 ways, for example, as 299209 + 74753316 = 547^2 + 8646^2 .

It is not a de Polignac number, because 75052525 - 23 = 75052517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1501026 + ... + 1501075.

Almost surely, 275052525 is an apocalyptic number.

It is an amenable number.

75052525 is a deficient number, since it is larger than the sum of its proper divisors (18012637).

75052525 is a wasteful number, since it uses less digits than its factorization.

75052525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002111 (or 3002106 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 75052525 is about 8663.2860393733. The cubic root of 75052525 is about 421.8147570128.

The spelling of 75052525 in words is "seventy-five million, fifty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 3002101 15010505 75052525