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2552121 = 331113661
BaseRepresentation
bin1001101111000100111001
311210122212000
421233010321
51123131441
6130411213
730456405
oct11570471
94718760
102552121
1114934a0
12a30b09
136b4840
144a6105
153562b6
hex26f139

2552121 has 32 divisors (see below), whose sum is σ = 4448640. Its totient is φ = 1425600.

The previous prime is 2552119. The next prime is 2552171. The reversal of 2552121 is 1212552.

It is not a de Polignac number, because 2552121 - 21 = 2552119 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2552094 and 2552103.

It is not an unprimeable number, because it can be changed into a prime (2552111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3531 + ... + 4191.

It is an arithmetic number, because the mean of its divisors is an integer number (139020).

22552121 is an apocalyptic number.

It is an amenable number.

2552121 is a deficient number, since it is larger than the sum of its proper divisors (1896519).

2552121 is a wasteful number, since it uses less digits than its factorization.

2552121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 688 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 2552121 is about 1597.5359150892. The cubic root of 2552121 is about 136.6575887949.

Adding to 2552121 its reverse (1212552), we get a palindrome (3764673).

The spelling of 2552121 in words is "two million, five hundred fifty-two thousand, one hundred twenty-one".

Divisors: 1 3 9 11 13 27 33 39 99 117 143 297 351 429 661 1287 1983 3861 5949 7271 8593 17847 21813 25779 65439 77337 94523 196317 232011 283569 850707 2552121