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75425255 = 515199901
BaseRepresentation
bin1000111111011…
…10010111100111
312020220222222222
410133232113213
5123302102010
611252342555
71604050463
oct437562747
9166828888
1075425255
1139637124
1221314a5b
131281b039
14a0354a3
15694d355
hex47ee5e7

75425255 has 8 divisors (see below), whose sum is σ = 91110624. Its totient is φ = 59940000.

The previous prime is 75425227. The next prime is 75425291. The reversal of 75425255 is 55252457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75425255 - 26 = 75425191 is a prime.

It is a super-3 number, since 3×754252553 (a number of 25 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 49196 + ... + 50705.

It is an arithmetic number, because the mean of its divisors is an integer number (11388828).

Almost surely, 275425255 is an apocalyptic number.

75425255 is a deficient number, since it is larger than the sum of its proper divisors (15685369).

75425255 is a wasteful number, since it uses less digits than its factorization.

75425255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100057.

The product of its digits is 70000, while the sum is 35.

The square root of 75425255 is about 8684.7714420127. The cubic root of 75425255 is about 422.5118841702.

The spelling of 75425255 in words is "seventy-five million, four hundred twenty-five thousand, two hundred fifty-five".

Divisors: 1 5 151 755 99901 499505 15085051 75425255