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57625493 = 496911597
BaseRepresentation
bin1101101111010…
…0101110010101
311000102200022112
43123310232111
5104223003433
65415040405
71266544232
oct333645625
9130380275
1057625493
112a589982
1217370105
13bc28233
147920789
1550d4348
hex36f4b95

57625493 has 4 divisors (see below), whose sum is σ = 57642060. Its totient is φ = 57608928.

The previous prime is 57625483. The next prime is 57625507. The reversal of 57625493 is 39452675.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32001649 + 25623844 = 5657^2 + 5062^2 .

It is a cyclic number.

It is not a de Polignac number, because 57625493 - 26 = 57625429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57625493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57625433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830 + ... + 10767.

It is an arithmetic number, because the mean of its divisors is an integer number (14410515).

Almost surely, 257625493 is an apocalyptic number.

It is an amenable number.

57625493 is a deficient number, since it is larger than the sum of its proper divisors (16567).

57625493 is a wasteful number, since it uses less digits than its factorization.

57625493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16566.

The product of its digits is 226800, while the sum is 41.

The square root of 57625493 is about 7591.1456974557. The cubic root of 57625493 is about 386.2527204872.

The spelling of 57625493 in words is "fifty-seven million, six hundred twenty-five thousand, four hundred ninety-three".

Divisors: 1 4969 11597 57625493