Search a number
-
+
2775578050825 = 52649117104163
BaseRepresentation
bin101000011000111101010…
…110000000000100001001
3100211100020210210000210121
4220120331112000010021
5330433340440111300
65523025530143241
7404346261110056
oct50307526000411
910740223700717
102775578050825
119801304a5708
12389b13581b21
13171974989738
14984a554002d
154c2ec23181a
hex2863d580109

2775578050825 has 12 divisors (see below), whose sum is σ = 3442247213328. Its totient is φ = 2220120227600.

The previous prime is 2775578050807. The next prime is 2775578050829. The reversal of 2775578050825 is 5280508755772.

It is a happy number.

It is not a de Polignac number, because 2775578050825 - 25 = 2775578050793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2775578050829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8389807 + ... + 8714356.

It is an arithmetic number, because the mean of its divisors is an integer number (286853934444).

Almost surely, 22775578050825 is an apocalyptic number.

2775578050825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2775578050825 is a deficient number, since it is larger than the sum of its proper divisors (666669162503).

2775578050825 is a wasteful number, since it uses less digits than its factorization.

2775578050825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17110664 (or 17110659 counting only the distinct ones).

The product of its (nonzero) digits is 54880000, while the sum is 61.

The spelling of 2775578050825 in words is "two trillion, seven hundred seventy-five billion, five hundred seventy-eight million, fifty thousand, eight hundred twenty-five".

Divisors: 1 5 25 6491 32455 162275 17104163 85520815 427604075 111023122033 555115610165 2775578050825