Search a number
-
+
55375754989 = 823109161673
BaseRepresentation
bin110011100100101001…
…101111011011101101
312021221020020211010111
4303210221233123231
51401402143124424
641234514340021
74000156102552
oct634451573355
9167836224114
1055375754989
1121537196375
12a89528a611
1352b6701539
142974684a29
1516917c1194
hexce4a6f6ed

55375754989 has 8 divisors (see below), whose sum is σ = 55494758592. Its totient is φ = 55256878560.

The previous prime is 55375754969. The next prime is 55375755031. The reversal of 55375754989 is 98945757355.

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 55375754989 - 227 = 55241537261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55375754969) 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, 867057 + ... + 928729.

It is an arithmetic number, because the mean of its divisors is an integer number (6936844824).

Almost surely, 255375754989 is an apocalyptic number.

It is an amenable number.

55375754989 is a deficient number, since it is larger than the sum of its proper divisors (119003603).

55375754989 is a wasteful number, since it uses less digits than its factorization.

55375754989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63587.

The product of its digits is 238140000, while the sum is 67.

The spelling of 55375754989 in words is "fifty-five billion, three hundred seventy-five million, seven hundred fifty-four thousand, nine hundred eighty-nine".

Divisors: 1 823 1091 61673 897893 50756879 67285243 55375754989