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775056425 = 521121319709
BaseRepresentation
bin101110001100100…
…110110000101001
32000000101221112112
4232030212300221
53041403301200
6204524052105
725130604503
oct5614466051
92000357475
10775056425
11368554400
12197694035
13c475b590
1474d14d73
154809b535
hex2e326c29

775056425 has 36 divisors (see below), whose sum is σ = 1137700620. Its totient is φ = 520291200.

The previous prime is 775056419. The next prime is 775056449. The reversal of 775056425 is 524650577.

It can be written as a sum of positive squares in 6 ways, for example, as 82156096 + 692900329 = 9064^2 + 26323^2 .

It is not a de Polignac number, because 775056425 - 210 = 775055401 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29471 + ... + 49179.

It is an arithmetic number, because the mean of its divisors is an integer number (31602795).

Almost surely, 2775056425 is an apocalyptic number.

It is an amenable number.

775056425 is a deficient number, since it is larger than the sum of its proper divisors (362644195).

775056425 is a wasteful number, since it uses less digits than its factorization.

775056425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19754 (or 19738 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 41.

The square root of 775056425 is about 27839.8352186215. The cubic root of 775056425 is about 918.5675664735.

The spelling of 775056425 in words is "seven hundred seventy-five million, fifty-six thousand, four hundred twenty-five".

Divisors: 1 5 11 13 25 55 65 121 143 275 325 605 715 1573 3025 3575 7865 19709 39325 98545 216799 256217 492725 1083995 1281085 2384789 2818387 5419975 6405425 11923945 14091935 31002257 59619725 70459675 155011285 775056425