1055649 has 16 divisors (see below), whose sum is σ = 1703808. Its totient is φ = 567552.

The previous prime is 1055611. The next prime is 1055671. The reversal of 1055649 is 9465501.

1055649 = T₂₃₂ + T₂₃₃ + ... + T₂₆₅.

It is not a de Polignac number, because 1055649 - 2⁹ = 1055137 is a prime.

It is a super-2 number, since 2×1055649² = 2228789622402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1122 + ... + 1835.

It is an arithmetic number, because the mean of its divisors is an integer number (106488).

2^1055649 is an apocalyptic number.

It is an amenable number.

1055649 is a deficient number, since it is larger than the sum of its proper divisors (648159).

1055649 is a wasteful number, since it uses less digits than its factorization.

1055649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1055649 is about 1027.4478088935. The cubic root of 1055649 is about 101.8215835241.

The spelling of 1055649 in words is "one million, fifty-five thousand, six hundred forty-nine".