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72525061 = 737927337
BaseRepresentation
bin1000101001010…
…10010100000101
312001110122200101
410110222110011
5122031300221
611110244101
71540311220
oct424522405
9161418611
1072525061
1137a36174
1220356631
1312043c4b
1498bc5b7
156578d91
hex452a505

72525061 has 8 divisors (see below), whose sum is σ = 83107520. Its totient is φ = 61998048.

The previous prime is 72525059. The next prime is 72525067. The reversal of 72525061 is 16052527.

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

It is not a de Polignac number, because 72525061 - 21 = 72525059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72525067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11016 + ... + 16321.

It is an arithmetic number, because the mean of its divisors is an integer number (10388440).

Almost surely, 272525061 is an apocalyptic number.

It is an amenable number.

72525061 is a deficient number, since it is larger than the sum of its proper divisors (10582459).

72525061 is a wasteful number, since it uses less digits than its factorization.

72525061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27723.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 72525061 is about 8516.1646884029. The cubic root of 72525061 is about 417.0255856342.

Adding to 72525061 its reverse (16052527), we get a palindrome (88577588).

The spelling of 72525061 in words is "seventy-two million, five hundred twenty-five thousand, sixty-one".

Divisors: 1 7 379 2653 27337 191359 10360723 72525061