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10551 = 33517
BaseRepresentation
bin10100100110111
3112110210
42210313
5314201
6120503
742522
oct24467
915423
1010551
117a22
126133
134a58
143bb9
1531d6
hex2937

10551 has 4 divisors (see below), whose sum is σ = 14072. Its totient is φ = 7032.

The previous prime is 10531. The next prime is 10559. The reversal of 10551 is 15501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15501 = 35167.

It is not a de Polignac number, because 10551 - 26 = 10487 is a prime.

It is a super-2 number, since 2×105512 = 222647202, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1756 + ... + 1761.

It is an arithmetic number, because the mean of its divisors is an integer number (3518).

210551 is an apocalyptic number.

10551 is a deficient number, since it is larger than the sum of its proper divisors (3521).

10551 is an equidigital number, since it uses as much as digits as its factorization.

10551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520.

The product of its (nonzero) digits is 25, while the sum is 12.

The square root of 10551 is about 102.7180607294. The cubic root of 10551 is about 21.9329917035.

Subtracting 10551 from its reverse (15501), we obtain a triangular number (4950 = T99).

It can be divided in two parts, 10 and 551, that added together give a triangular number (561 = T33).

The spelling of 10551 in words is "ten thousand, five hundred fifty-one".

Divisors: 1 3 3517 10551