4200551 has 4 divisors (see below), whose sum is σ = 4225872. Its totient is φ = 4175232.

The previous prime is 4200529. The next prime is 4200583. The reversal of 4200551 is 1550024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4200551 - 2⁶ = 4200487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4200451) 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, 12410 + ... + 12743.

It is an arithmetic number, because the mean of its divisors is an integer number (1056468).

Almost surely, 2^4200551 is an apocalyptic number.

4200551 is a deficient number, since it is larger than the sum of its proper divisors (25321).

4200551 is a wasteful number, since it uses less digits than its factorization.

4200551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25320.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 4200551 is about 2049.5245790183. The cubic root of 4200551 is about 161.3499198430.

Adding to 4200551 its reverse (1550024), we get a palindrome (5750575).

The spelling of 4200551 in words is "four million, two hundred thousand, five hundred fifty-one".