3520551 has 8 divisors (see below), whose sum is σ = 4703104. Its totient is φ = 2342520.

The previous prime is 3520549. The next prime is 3520579. The reversal of 3520551 is 1550253.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3520551 - 2¹ = 3520549 is a prime.

It is a Duffinian number.

3520551 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1710 + ... + 3156.

It is an arithmetic number, because the mean of its divisors is an integer number (587888).

Almost surely, 2^3520551 is an apocalyptic number.

3520551 is a deficient number, since it is larger than the sum of its proper divisors (1182553).

3520551 is a wasteful number, since it uses less digits than its factorization.

3520551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 3520551 is about 1876.3131401768. The cubic root of 3520551 is about 152.1260352391.

The spelling of 3520551 in words is "three million, five hundred twenty thousand, five hundred fifty-one".