1063551 has 8 divisors (see below), whose sum is σ = 1445040. Its totient is φ = 695552.

The previous prime is 1063547. The next prime is 1063553. The reversal of 1063551 is 1553601.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1063551 - 2² = 1063547 is a prime.

It is a super-2 number, since 2×1063551² = 2262281459202, which contains 22 as substring.

It is an Ulam number.

1063551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1063553) 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, 3186 + ... + 3503.

It is an arithmetic number, because the mean of its divisors is an integer number (180630).

2^1063551 is an apocalyptic number.

1063551 is a deficient number, since it is larger than the sum of its proper divisors (381489).

1063551 is an equidigital number, since it uses as much as digits as its factorization.

1063551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1063551 is about 1031.2860902776. The cubic root of 1063551 is about 102.0750121034.

The spelling of 1063551 in words is "one million, sixty-three thousand, five hundred fifty-one".