35551 has 4 divisors (see below), whose sum is σ = 36112. Its totient is φ = 34992.

The previous prime is 35543. The next prime is 35569. The reversal of 35551 is 15553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15553 = 103 ⋅151.

It is a 4-Lehmer number, since φ(35551) divides (35551-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 35551 - 2³ = 35543 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35521) 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, 171 + ... + 316.

It is an arithmetic number, because the mean of its divisors is an integer number (9028).

2³⁵⁵⁵¹ is an apocalyptic number.

35551 is a deficient number, since it is larger than the sum of its proper divisors (561).

35551 is an equidigital number, since it uses as much as digits as its factorization.

35551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560.

The product of its digits is 375, while the sum is 19.

The square root of 35551 is about 188.5497281886. The cubic root of 35551 is about 32.8814232270.

It can be divided in two parts, 355 and 51, that added together give a triangular number (406 = T₂₈).

The spelling of 35551 in words is "thirty-five thousand, five hundred fifty-one".