5525781 has 8 divisors (see below), whose sum is σ = 7605504. Its totient is φ = 3564960.

The previous prime is 5525777. The next prime is 5525791. The reversal of 5525781 is 1875255.

It is a happy number.

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

It is not a de Polignac number, because 5525781 - 2² = 5525777 is a prime.

It is a super-2 number, since 2×5525781² = 61068511319922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5525701) 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, 29616 + ... + 29801.

It is an arithmetic number, because the mean of its divisors is an integer number (950688).

Almost surely, 2^5525781 is an apocalyptic number.

It is an amenable number.

5525781 is a deficient number, since it is larger than the sum of its proper divisors (2079723).

5525781 is a wasteful number, since it uses less digits than its factorization.

5525781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59451.

The product of its digits is 14000, while the sum is 33.

The square root of 5525781 is about 2350.6979814515. The cubic root of 5525781 is about 176.7927927319.

The spelling of 5525781 in words is "five million, five hundred twenty-five thousand, seven hundred eighty-one".