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57453925 = 5218112697
BaseRepresentation
bin1101101100101…
…0110101100101
311000002221222011
43123022311211
5104202011200
65411234221
71265231104
oct333126545
9130087864
1057453925
112a481a91
12172a8971
13bb98109
1478b803b
15509d5ba
hex36cad65

57453925 has 12 divisors (see below), whose sum is σ = 71642116. Its totient is φ = 45705600.

The previous prime is 57453919. The next prime is 57453937. The reversal of 57453925 is 52935475.

It can be written as a sum of positive squares in 6 ways, for example, as 20511841 + 36942084 = 4529^2 + 6078^2 .

It is not a de Polignac number, because 57453925 - 23 = 57453917 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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, 1824 + ... + 10873.

Almost surely, 257453925 is an apocalyptic number.

It is an amenable number.

57453925 is a deficient number, since it is larger than the sum of its proper divisors (14188191).

57453925 is a wasteful number, since it uses less digits than its factorization.

57453925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12888 (or 12883 counting only the distinct ones).

The product of its digits is 189000, while the sum is 40.

The square root of 57453925 is about 7579.8367396666. The cubic root of 57453925 is about 385.8690102036.

It can be divided in two parts, 574539 and 25, that added together give a square (574564 = 7582).

The spelling of 57453925 in words is "fifty-seven million, four hundred fifty-three thousand, nine hundred twenty-five".

Divisors: 1 5 25 181 905 4525 12697 63485 317425 2298157 11490785 57453925