Search a number
-
+
55280053025 = 52171929236063
BaseRepresentation
bin110011011110111100…
…101010101100100001
312021200120011122201022
4303132330222230201
51401203143144100
641221215215225
73664614461231
oct633674525441
9167616148638
1055280053025
112149817003a
12a869217515
13529c934162
142965a91cc1
1516881b9e85
hexcdef2ab21

55280053025 has 48 divisors (see below), whose sum is σ = 79034227200. Its totient is φ = 38072079360.

The previous prime is 55280053013. The next prime is 55280053051. The reversal of 55280053025 is 52035008255.

It is not a de Polignac number, because 55280053025 - 28 = 55280052769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116144 + ... + 352206.

It is an arithmetic number, because the mean of its divisors is an integer number (1646546400).

Almost surely, 255280053025 is an apocalyptic number.

It is an amenable number.

55280053025 is a deficient number, since it is larger than the sum of its proper divisors (23754174175).

55280053025 is a wasteful number, since it uses less digits than its factorization.

55280053025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236138 (or 236133 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 55280053025 in words is "fifty-five billion, two hundred eighty million, fifty-three thousand, twenty-five".

Divisors: 1 5 17 19 25 29 85 95 145 323 425 475 493 551 725 1615 2465 2755 8075 9367 12325 13775 46835 234175 236063 1180315 4013071 4485197 5901575 6845827 20065355 22425985 34229135 76248349 100326775 112129925 116379059 130070713 171145675 381241745 581895295 650353565 1906208725 2211202121 2909476475 3251767825 11056010605 55280053025