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61064525 = 5210922409
BaseRepresentation
bin1110100011110…
…0010101001101
311020220101210002
43220330111031
5111113031100
610020454045
71341016454
oct350742515
9136811702
1061064525
1131518755
121854a325
13c860672
148177b9b
1555632d5
hex3a3c54d

61064525 has 12 divisors (see below), whose sum is σ = 76418100. Its totient is φ = 48401280.

The previous prime is 61064519. The next prime is 61064557. The reversal of 61064525 is 52546016.

It can be written as a sum of positive squares in 6 ways, for example, as 5929 + 61058596 = 77^2 + 7814^2 .

It is not a de Polignac number, because 61064525 - 212 = 61060429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8480 + ... + 13929.

It is an arithmetic number, because the mean of its divisors is an integer number (6368175).

Almost surely, 261064525 is an apocalyptic number.

It is an amenable number.

61064525 is a deficient number, since it is larger than the sum of its proper divisors (15353575).

61064525 is a wasteful number, since it uses less digits than its factorization.

61064525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22528 (or 22523 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 61064525 is about 7814.3793739490. The cubic root of 61064525 is about 393.7884685688.

The spelling of 61064525 in words is "sixty-one million, sixty-four thousand, five hundred twenty-five".

Divisors: 1 5 25 109 545 2725 22409 112045 560225 2442581 12212905 61064525