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1025132525 = 5241005301
BaseRepresentation
bin111101000110100…
…100011111101101
32122102222010110022
4331012210133231
54044413220100
6245420051525
734255324364
oct7506443755
92572863408
101025132525
1148672a26a
12247393ba5
131344c97c1
149a2107db
155eee7e85
hex3d1a47ed

1025132525 has 6 divisors (see below), whose sum is σ = 1271164362. Its totient is φ = 820106000.

The previous prime is 1025132491. The next prime is 1025132533. The reversal of 1025132525 is 5252315201.

It can be written as a sum of positive squares in 3 ways, for example, as 201327721 + 823804804 = 14189^2 + 28702^2 .

It is not a de Polignac number, because 1025132525 - 26 = 1025132461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025132494 and 1025132503.

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, 20502626 + ... + 20502675.

It is an arithmetic number, because the mean of its divisors is an integer number (211860727).

Almost surely, 21025132525 is an apocalyptic number.

It is an amenable number.

1025132525 is a deficient number, since it is larger than the sum of its proper divisors (246031837).

1025132525 is an equidigital number, since it uses as much as digits as its factorization.

1025132525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41005311 (or 41005306 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1025132525 is about 32017.6908130490. The cubic root of 1025132525 is about 1008.3082894918.

Adding to 1025132525 its reverse (5252315201), we get a palindrome (6277447726).

The spelling of 1025132525 in words is "one billion, twenty-five million, one hundred thirty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 41005301 205026505 1025132525