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55804202061 = 325772378991
BaseRepresentation
bin110011111110001100…
…001000110001001101
312100001002110012000120
4303332030020301031
51403241333431221
641345221415153
74013610614436
oct637614106115
9170032405016
1055804202061
1121737020a63
12a99486a4b9
1353543c300a
1429b553248d
1516b92035c6
hexcfe308c4d

55804202061 has 8 divisors (see below), whose sum is σ = 74695119744. Its totient is φ = 37058042880.

The previous prime is 55804202053. The next prime is 55804202071. The reversal of 55804202061 is 16020240855.

55804202061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55804202061 - 23 = 55804202053 is a prime.

It is a super-2 number, since 2×558042020612 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55804202011) 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, 36188725 + ... + 36190266.

It is an arithmetic number, because the mean of its divisors is an integer number (9336889968).

Almost surely, 255804202061 is an apocalyptic number.

It is an amenable number.

55804202061 is a deficient number, since it is larger than the sum of its proper divisors (18890917683).

55804202061 is a wasteful number, since it uses less digits than its factorization.

55804202061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72379251.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 55804202061 in words is "fifty-five billion, eight hundred four million, two hundred two thousand, sixty-one".

Divisors: 1 3 257 771 72378991 217136973 18601400687 55804202061