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55005992 = 236875749
BaseRepresentation
bin1101000111010…
…1001100101000
310211111121000222
43101311030220
5103040142432
65242545212
71235354216
oct321651450
9124447028
1055005992
112905a8a8
1216508208
13b51bb32
14743bcb6
154c68112
hex3475328

55005992 has 8 divisors (see below), whose sum is σ = 103136250. Its totient is φ = 27502992.

The previous prime is 55005991. The next prime is 55006037. The reversal of 55005992 is 29950055.

It can be written as a sum of positive squares in only one way, i.e., 35593156 + 19412836 = 5966^2 + 4406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (55005991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3437867 + ... + 3437882.

Almost surely, 255005992 is an apocalyptic number.

It is an amenable number.

55005992 is a deficient number, since it is larger than the sum of its proper divisors (48130258).

55005992 is a wasteful number, since it uses less digits than its factorization.

55005992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875755 (or 6875751 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 35.

The square root of 55005992 is about 7416.6024566509. The cubic root of 55005992 is about 380.3090560541.

The spelling of 55005992 in words is "fifty-five million, five thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 6875749 13751498 27502996 55005992