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1025122255 = 51721119131
BaseRepresentation
bin111101000110100…
…001111111001111
32122102221121100221
4331012201333033
54044412403010
6245415532211
734255252423
oct7506417717
92572847327
101025122255
11486722583
1224738a067
131344c4c21
149a20ab83
155eee4dda
hex3d1a1fcf

1025122255 has 8 divisors (see below), whose sum is σ = 1230871824. Its totient is φ = 819614400.

The previous prime is 1025122207. The next prime is 1025122261. The reversal of 1025122255 is 5522215201.

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

It is not a de Polignac number, because 1025122255 - 213 = 1025114063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50961 + ... + 68170.

It is an arithmetic number, because the mean of its divisors is an integer number (153858978).

Almost surely, 21025122255 is an apocalyptic number.

1025122255 is a deficient number, since it is larger than the sum of its proper divisors (205749569).

1025122255 is a wasteful number, since it uses less digits than its factorization.

1025122255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120857.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1025122255 is about 32017.5304325615. The cubic root of 1025122255 is about 1008.3049223301.

Adding to 1025122255 its reverse (5522215201), we get a palindrome (6547337456).

The spelling of 1025122255 in words is "one billion, twenty-five million, one hundred twenty-two thousand, two hundred fifty-five".

Divisors: 1 5 1721 8605 119131 595655 205024451 1025122255