1055513 has 8 divisors (see below), whose sum is σ = 1156680. Its totient is φ = 958720.

The previous prime is 1055503. The next prime is 1055531. The reversal of 1055513 is 3155501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 582169 + 473344 = 763^2 + 688^2 .

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 1055513 - 2¹² = 1051417 is a prime.

It is a super-2 number, since 2×1055513² = 2228215386338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055503) 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, 578 + ... + 1563.

It is an arithmetic number, because the mean of its divisors is an integer number (144585).

2^1055513 is an apocalyptic number.

It is an amenable number.

1055513 is a deficient number, since it is larger than the sum of its proper divisors (101167).

1055513 is a wasteful number, since it uses less digits than its factorization.

1055513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 1055513 is about 1027.3816233513. The cubic root of 1055513 is about 101.8172107543.

The spelling of 1055513 in words is "one million, fifty-five thousand, five hundred thirteen".