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53778053 = 727128349
BaseRepresentation
bin1100110100100…
…1011010000101
310202012012121202
43031021122011
5102231344203
65200352245
71222051220
oct315113205
9122165552
1053778053
11283a127a
1216015685
13b1abc44
1471dc5b7
154ac4388
hex3349685

53778053 has 8 divisors (see below), whose sum is σ = 61689600. Its totient is φ = 45923760.

The previous prime is 53778047. The next prime is 53778073. The reversal of 53778053 is 35087735.

It is a happy number.

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 53778053 - 28 = 53777797 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53777998 and 53778016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53778073) 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, 12278 + ... + 16071.

It is an arithmetic number, because the mean of its divisors is an integer number (7711200).

Almost surely, 253778053 is an apocalyptic number.

It is an amenable number.

53778053 is a deficient number, since it is larger than the sum of its proper divisors (7911547).

53778053 is a wasteful number, since it uses less digits than its factorization.

53778053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28627.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 53778053 is about 7333.3520984608. The cubic root of 53778053 is about 377.4577599917.

The spelling of 53778053 in words is "fifty-three million, seven hundred seventy-eight thousand, fifty-three".

Divisors: 1 7 271 1897 28349 198443 7682579 53778053