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57553069 = 780910163
BaseRepresentation
bin1101101110001…
…1000010101101
311000021222222011
43123203002231
5104213144234
65413321221
71266123130
oct333430255
9130258864
1057553069
112a53a522
1217336211
13bc01292
147902217
1550bcb64
hex36e30ad

57553069 has 8 divisors (see below), whose sum is σ = 65862720. Its totient is φ = 49265376.

The previous prime is 57553063. The next prime is 57553091. The reversal of 57553069 is 96035575.

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

It is a cyclic number.

It is not a de Polignac number, because 57553069 - 223 = 49164461 is a prime.

It is a super-2 number, since 2×575530692 = 6624711502637522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57553063) 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, 582 + ... + 10744.

It is an arithmetic number, because the mean of its divisors is an integer number (8232840).

Almost surely, 257553069 is an apocalyptic number.

It is an amenable number.

57553069 is a deficient number, since it is larger than the sum of its proper divisors (8309651).

57553069 is a wasteful number, since it uses less digits than its factorization.

57553069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10979.

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 57553069 is about 7586.3739032558. The cubic root of 57553069 is about 386.0908378838.

The spelling of 57553069 in words is "fifty-seven million, five hundred fifty-three thousand, sixty-nine".

Divisors: 1 7 809 5663 10163 71141 8221867 57553069