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1055807 = 8911863
BaseRepresentation
bin100000001110000111111
31222122021222
410001300333
5232241212
634343555
711655104
oct4016077
91878258
101055807
11661275
1242abbb
132ac74c
141d6aab
1515cc72
hex101c3f

1055807 has 4 divisors (see below), whose sum is σ = 1067760. Its totient is φ = 1043856.

The previous prime is 1055801. The next prime is 1055809. The reversal of 1055807 is 7085501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1055807 is a prime.

It is a super-2 number, since 2×10558072 = 2229456842498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5843 + ... + 6020.

It is an arithmetic number, because the mean of its divisors is an integer number (266940).

21055807 is an apocalyptic number.

1055807 is a deficient number, since it is larger than the sum of its proper divisors (11953).

1055807 is an equidigital number, since it uses as much as digits as its factorization.

1055807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11952.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 1055807 is about 1027.5246955670. The cubic root of 1055807 is about 101.8266631821.

The spelling of 1055807 in words is "one million, fifty-five thousand, eight hundred seven".

Divisors: 1 89 11863 1055807